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  <url><loc>https://periodictable.page/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/periodic-table-infographic-state-at-room-temperature.webp</image:loc><image:title>Periodic table of states of matter at room temperature: solids in grey, the liquids bromine and mercury in blue, and the eleven gases in orange in the top-right corner</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-table-infographic-atomic-mass.webp</image:loc><image:title>Periodic table of atomic masses with each element shaded from light to dark teal by atomic weight, from hydrogen at 1.008 u to oganesson at 294 u</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-table-elements-per-period-by-block.svg</image:loc><image:caption>Each period&#x27;s length is the sum of the blocks it fills: s holds 2 elements, p 6, d 10 and f 14.</image:caption><image:title>Stacked bar chart of the periodic table showing periods 1 to 7 holding 2, 8, 8, 18, 18, 32 and 32 elements, split into s-, p-, d- and f-block elements</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-table-infographic-electron-shells.webp</image:loc><image:title>Periodic table of electron configurations showing the electrons per shell on each tile, coloured by s-block, p-block, d-block and f-block</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-trends-first-ionisation-energy-line-chart.svg</image:loc><image:caption>First ionisation energy rises across each period and drops sharply at every new alkali metal.</image:caption><image:title>Line chart of first ionisation energy for elements 1 to 20, peaking at helium, neon and argon and falling at lithium, sodium and potassium</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-table-infographic-electronegativity.webp</image:loc><image:title>Periodic table of electronegativity on the Pauling scale, with tiles shading darker towards fluorine at 3.98 in the top-right corner</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-table-infographic-element-families.webp</image:loc><image:title>Periodic table by element family, with all 118 elements colour-coded into alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, reactive nonmetals, halogens, noble gases, lanthanides and actinides</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-law-history-timeline.svg</image:loc><image:caption>From triads to a complete seventh period: the milestones that shaped the modern table.</image:caption><image:title>Timeline of periodic law history from Döbereiner&#x27;s triads in 1829 and Mendeleev&#x27;s 1869 table to the naming of elements 113 to 118 in 2016</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/periodic-table-molar-mass-iron-oxide-waterfall.svg</image:loc><image:caption>Two iron atoms contribute 111.690 g/mol and three oxygen atoms 47.997 g/mol, for 159.687 g/mol in total.</image:caption><image:title>Waterfall chart adding the atomic weight of 2 iron atoms and 3 oxygen atoms to reach a molar mass of 159.687 g/mol for iron(III) oxide</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/sitemap/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/alkali-metals-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/alkaline-earth-metals-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/transition-metals-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/post-transition-metals-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/metalloids-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/reactive-nonmetals-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/halogens-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/noble-gases-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/lanthanides-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/actinides-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/hydrogen-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/hydrogen-bohr-model-animation.avif</image:loc><image:caption>The hydrogen atom in motion: its 1 electron travel round 1 shell while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hydrogen Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hydrogen-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the hydrogen atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hydrogen Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hydrogen-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the hydrogen atom show how its electrons are spread over 1 shell. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hydrogen Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hydrogen-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut hydrogen atom has its 1 electron on rings around a nucleus of 1 proton and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hydrogen Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/helium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/helium-bohr-model-animation.avif</image:loc><image:caption>The helium atom in motion: its 2 electrons travel round 1 shell while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Helium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/helium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the helium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Helium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/helium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the helium atom show how its electrons are spread over 1 shell. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Helium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/helium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut helium atom has its 2 electrons on rings around a nucleus of 2 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Helium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lithium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lithium-bohr-model-animation.avif</image:loc><image:caption>The lithium atom in motion: its 3 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lithium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lithium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the lithium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lithium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lithium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the lithium atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lithium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lithium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut lithium atom has its 3 electrons on rings around a nucleus of 3 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lithium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/beryllium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/beryllium-bohr-model-animation.avif</image:loc><image:caption>The beryllium atom in motion: its 4 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Beryllium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/beryllium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the beryllium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Beryllium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/beryllium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the beryllium atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Beryllium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/beryllium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut beryllium atom has its 4 electrons on rings around a nucleus of 4 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Beryllium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/boron-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/boron-bohr-model-animation.avif</image:loc><image:caption>The boron atom in motion: its 5 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Boron Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/boron-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the boron atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Boron Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/boron-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the boron atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Boron Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/boron-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut boron atom has its 5 electrons on rings around a nucleus of 5 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Boron Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/carbon-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/carbon-bohr-model-animation.avif</image:loc><image:caption>The carbon atom in motion: its 6 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Carbon Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/carbon-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the carbon atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Carbon Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/carbon-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the carbon atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Carbon Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/carbon-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut carbon atom has its 6 electrons on rings around a nucleus of 6 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Carbon Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nitrogen-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nitrogen-bohr-model-animation.avif</image:loc><image:caption>The nitrogen atom in motion: its 7 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nitrogen Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nitrogen-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the nitrogen atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nitrogen Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nitrogen-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the nitrogen atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nitrogen Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nitrogen-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut nitrogen atom has its 7 electrons on rings around a nucleus of 7 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nitrogen Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/oxygen-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/oxygen-bohr-model-animation.avif</image:loc><image:caption>The oxygen atom in motion: its 8 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oxygen Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oxygen-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the oxygen atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oxygen Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oxygen-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the oxygen atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oxygen Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oxygen-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut oxygen atom has its 8 electrons on rings around a nucleus of 8 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oxygen Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/fluorine-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/fluorine-bohr-model-animation.avif</image:loc><image:caption>The fluorine atom in motion: its 9 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fluorine Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fluorine-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the fluorine atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fluorine Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fluorine-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the fluorine atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fluorine Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fluorine-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut fluorine atom has its 9 electrons on rings around a nucleus of 9 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fluorine Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/neon-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/neon-bohr-model-animation.avif</image:loc><image:caption>The neon atom in motion: its 10 electrons travel round 2 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neon Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neon-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the neon atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neon Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neon-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the neon atom show how its electrons are spread over 2 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neon Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neon-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut neon atom has its 10 electrons on rings around a nucleus of 10 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neon Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/sodium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/sodium-bohr-model-animation.avif</image:loc><image:caption>The sodium atom in motion: its 11 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sodium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sodium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the sodium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sodium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sodium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the sodium atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sodium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sodium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut sodium atom has its 11 electrons on rings around a nucleus of 11 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sodium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/magnesium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/magnesium-bohr-model-animation.avif</image:loc><image:caption>The magnesium atom in motion: its 12 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Magnesium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/magnesium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the magnesium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Magnesium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/magnesium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the magnesium atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Magnesium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/magnesium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut magnesium atom has its 12 electrons on rings around a nucleus of 12 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Magnesium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/aluminium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/aluminium-bohr-model-animation.avif</image:loc><image:caption>The aluminium atom in motion: its 13 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Aluminium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/aluminium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the aluminium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Aluminium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/aluminium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the aluminium atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Aluminium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/aluminium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut aluminium atom has its 13 electrons on rings around a nucleus of 13 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Aluminium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/silicon-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/silicon-bohr-model-animation.avif</image:loc><image:caption>The silicon atom in motion: its 14 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silicon Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silicon-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the silicon atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silicon Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silicon-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the silicon atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silicon Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silicon-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut silicon atom has its 14 electrons on rings around a nucleus of 14 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silicon Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/phosphorus-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/phosphorus-bohr-model-animation.avif</image:loc><image:caption>The phosphorus atom in motion: its 15 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Phosphorus Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/phosphorus-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the phosphorus atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Phosphorus Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/phosphorus-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the phosphorus atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Phosphorus Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/phosphorus-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut phosphorus atom has its 15 electrons on rings around a nucleus of 15 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Phosphorus Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/sulfur-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/sulfur-bohr-model-animation.avif</image:loc><image:caption>The sulfur atom in motion: its 16 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sulfur Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sulfur-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the sulfur atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sulfur Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sulfur-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the sulfur atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sulfur Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sulfur-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut sulfur atom has its 16 electrons on rings around a nucleus of 16 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sulfur Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/chlorine-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/chlorine-bohr-model-animation.avif</image:loc><image:caption>The chlorine atom in motion: its 17 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chlorine Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chlorine-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the chlorine atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chlorine Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chlorine-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the chlorine atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chlorine Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chlorine-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut chlorine atom has its 17 electrons on rings around a nucleus of 17 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chlorine Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/argon-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/argon-bohr-model-animation.avif</image:loc><image:caption>The argon atom in motion: its 18 electrons travel round 3 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Argon Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/argon-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the argon atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Argon Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/argon-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the argon atom show how its electrons are spread over 3 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Argon Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/argon-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut argon atom has its 18 electrons on rings around a nucleus of 18 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Argon Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/potassium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/potassium-bohr-model-animation.avif</image:loc><image:caption>The potassium atom in motion: its 19 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Potassium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/potassium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the potassium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Potassium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/potassium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the potassium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Potassium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/potassium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut potassium atom has its 19 electrons on rings around a nucleus of 19 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Potassium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/calcium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/calcium-bohr-model-animation.avif</image:loc><image:caption>The calcium atom in motion: its 20 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Calcium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/calcium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the calcium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Calcium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/calcium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the calcium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Calcium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/calcium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut calcium atom has its 20 electrons on rings around a nucleus of 20 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Calcium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/scandium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/scandium-bohr-model-animation.avif</image:loc><image:caption>The scandium atom in motion: its 21 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Scandium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/scandium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the scandium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Scandium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/scandium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the scandium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Scandium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/scandium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut scandium atom has its 21 electrons on rings around a nucleus of 21 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Scandium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/titanium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/titanium-bohr-model-animation.avif</image:loc><image:caption>The titanium atom in motion: its 22 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Titanium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/titanium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the titanium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Titanium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/titanium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the titanium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Titanium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/titanium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut titanium atom has its 22 electrons on rings around a nucleus of 22 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Titanium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/vanadium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/vanadium-bohr-model-animation.avif</image:loc><image:caption>The vanadium atom in motion: its 23 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Vanadium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/vanadium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the vanadium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Vanadium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/vanadium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the vanadium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Vanadium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/vanadium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut vanadium atom has its 23 electrons on rings around a nucleus of 23 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Vanadium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/chromium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/chromium-bohr-model-animation.avif</image:loc><image:caption>The chromium atom in motion: its 24 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chromium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chromium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the chromium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chromium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chromium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the chromium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chromium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chromium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut chromium atom has its 24 electrons on rings around a nucleus of 24 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chromium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/manganese-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/manganese-bohr-model-animation.avif</image:loc><image:caption>The manganese atom in motion: its 25 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Manganese Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/manganese-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the manganese atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Manganese Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/manganese-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the manganese atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Manganese Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/manganese-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut manganese atom has its 25 electrons on rings around a nucleus of 25 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Manganese Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/iron-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/iron-bohr-model-animation.avif</image:loc><image:caption>The iron atom in motion: its 26 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iron Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iron-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the iron atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iron Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iron-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the iron atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iron Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iron-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut iron atom has its 26 electrons on rings around a nucleus of 26 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iron Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cobalt-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cobalt-bohr-model-animation.avif</image:loc><image:caption>The cobalt atom in motion: its 27 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cobalt Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cobalt-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the cobalt atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cobalt Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cobalt-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the cobalt atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cobalt Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cobalt-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut cobalt atom has its 27 electrons on rings around a nucleus of 27 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cobalt Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nickel-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nickel-bohr-model-animation.avif</image:loc><image:caption>The nickel atom in motion: its 28 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nickel Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nickel-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the nickel atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nickel Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nickel-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the nickel atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nickel Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nickel-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut nickel atom has its 28 electrons on rings around a nucleus of 28 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nickel Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/copper-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/copper-bohr-model-animation.avif</image:loc><image:caption>The copper atom in motion: its 29 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copper Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/copper-element-periodic-table/images/copper-electrical-conductivity-comparison.svg</image:loc><image:caption>Copper conducts electricity almost as well as silver and far better than aluminium or iron.</image:caption><image:title>Bar chart comparing the electrical conductivity of silver, copper, gold, aluminium and iron, with copper second at 59.6 MS/m</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copper-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the copper atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copper Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/copper-element-periodic-table/images/copper-alloys-composition-bars.svg</image:loc><image:caption>How much copper each common alloy contains, from about 90% in marine cupronickel down to 2.5% in a modern penny.</image:caption><image:title>Stacked bar chart showing the copper share of bronze, brass, cupronickel, Muntz metal, sterling silver and a modern US penny</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/copper-element-periodic-table/images/uses-of-copper-share-by-end-use.svg</image:loc><image:caption>Electrical wire takes about three fifths of all copper, more than every other use combined.</image:caption><image:title>Horizontal stacked bar splitting copper end uses into electrical wire at 60 percent, roofing and plumbing at 20 percent, industrial machinery at 15 percent and alloys at 5 percent</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copper-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the copper atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copper Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copper-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut copper atom has its 29 electrons on rings around a nucleus of 29 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copper Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/copper-element-periodic-table/images/copper-history-timeline.svg</image:loc><image:caption>Copper&#x27;s history spans about eleven thousand years, from hammered beads to the wires of the electric grid.</image:caption><image:title>Timeline of copper history from first native copper use around 9000 BC through smelting, bronze, Egyptian blue and Roman mining to the electrical age and 2024 production</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/zinc-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/zinc-bohr-model-animation.avif</image:loc><image:caption>The zinc atom in motion: its 30 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zinc Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zinc-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the zinc atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zinc Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zinc-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the zinc atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zinc Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zinc-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut zinc atom has its 30 electrons on rings around a nucleus of 30 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zinc Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/gallium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/gallium-bohr-model-animation.avif</image:loc><image:caption>The gallium atom in motion: its 31 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gallium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gallium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the gallium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gallium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gallium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the gallium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gallium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gallium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut gallium atom has its 31 electrons on rings around a nucleus of 31 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gallium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/germanium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/germanium-bohr-model-animation.avif</image:loc><image:caption>The germanium atom in motion: its 32 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Germanium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/germanium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the germanium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Germanium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/germanium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the germanium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Germanium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/germanium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut germanium atom has its 32 electrons on rings around a nucleus of 32 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Germanium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/arsenic-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/arsenic-bohr-model-animation.avif</image:loc><image:caption>The arsenic atom in motion: its 33 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Arsenic Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/arsenic-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the arsenic atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Arsenic Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/arsenic-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the arsenic atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Arsenic Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/arsenic-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut arsenic atom has its 33 electrons on rings around a nucleus of 33 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Arsenic Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/selenium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/selenium-bohr-model-animation.avif</image:loc><image:caption>The selenium atom in motion: its 34 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Selenium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/selenium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the selenium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Selenium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/selenium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the selenium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Selenium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/selenium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut selenium atom has its 34 electrons on rings around a nucleus of 34 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Selenium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/bromine-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/bromine-bohr-model-animation.avif</image:loc><image:caption>The bromine atom in motion: its 35 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bromine Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bromine-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the bromine atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bromine Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bromine-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the bromine atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bromine Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bromine-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut bromine atom has its 35 electrons on rings around a nucleus of 35 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bromine Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/krypton-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/krypton-bohr-model-animation.avif</image:loc><image:caption>The krypton atom in motion: its 36 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Krypton Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/krypton-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the krypton atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Krypton Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/krypton-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the krypton atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Krypton Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/krypton-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut krypton atom has its 36 electrons on rings around a nucleus of 36 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Krypton Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rubidium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rubidium-bohr-model-animation.avif</image:loc><image:caption>The rubidium atom in motion: its 37 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rubidium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rubidium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the rubidium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rubidium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rubidium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the rubidium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rubidium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rubidium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut rubidium atom has its 37 electrons on rings around a nucleus of 37 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rubidium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/strontium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/strontium-bohr-model-animation.avif</image:loc><image:caption>The strontium atom in motion: its 38 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Strontium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/strontium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the strontium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Strontium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/strontium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the strontium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Strontium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/strontium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut strontium atom has its 38 electrons on rings around a nucleus of 38 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Strontium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/yttrium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/yttrium-bohr-model-animation.avif</image:loc><image:caption>The yttrium atom in motion: its 39 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Yttrium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/yttrium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the yttrium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Yttrium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/yttrium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the yttrium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Yttrium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/yttrium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut yttrium atom has its 39 electrons on rings around a nucleus of 39 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Yttrium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/zirconium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/zirconium-bohr-model-animation.avif</image:loc><image:caption>The zirconium atom in motion: its 40 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zirconium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zirconium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the zirconium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zirconium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zirconium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the zirconium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zirconium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zirconium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut zirconium atom has its 40 electrons on rings around a nucleus of 40 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zirconium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/niobium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/niobium-bohr-model-animation.avif</image:loc><image:caption>The niobium atom in motion: its 41 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Niobium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/niobium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the niobium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Niobium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/niobium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the niobium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Niobium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/niobium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut niobium atom has its 41 electrons on rings around a nucleus of 41 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Niobium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/molybdenum-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/molybdenum-bohr-model-animation.avif</image:loc><image:caption>The molybdenum atom in motion: its 42 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Molybdenum Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/molybdenum-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the molybdenum atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Molybdenum Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/molybdenum-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the molybdenum atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Molybdenum Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/molybdenum-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut molybdenum atom has its 42 electrons on rings around a nucleus of 42 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Molybdenum Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/technetium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/technetium-bohr-model-animation.avif</image:loc><image:caption>The technetium atom in motion: its 43 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Technetium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/technetium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the technetium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Technetium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/technetium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the technetium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Technetium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/technetium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut technetium atom has its 43 electrons on rings around a nucleus of 43 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Technetium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/ruthenium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/ruthenium-bohr-model-animation.avif</image:loc><image:caption>The ruthenium atom in motion: its 44 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ruthenium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ruthenium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the ruthenium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ruthenium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ruthenium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the ruthenium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ruthenium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ruthenium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut ruthenium atom has its 44 electrons on rings around a nucleus of 44 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ruthenium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rhodium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rhodium-bohr-model-animation.avif</image:loc><image:caption>The rhodium atom in motion: its 45 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhodium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhodium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the rhodium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhodium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhodium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the rhodium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhodium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhodium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut rhodium atom has its 45 electrons on rings around a nucleus of 45 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhodium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/palladium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/palladium-bohr-model-animation.avif</image:loc><image:caption>The palladium atom in motion: its 46 electrons travel round 4 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Palladium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/palladium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the palladium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Palladium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/palladium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the palladium atom show how its electrons are spread over 4 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Palladium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/palladium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut palladium atom has its 46 electrons on rings around a nucleus of 46 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Palladium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/silver-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/silver-bohr-model-animation.avif</image:loc><image:caption>The silver atom in motion: its 47 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silver Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silver-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the silver atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silver Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silver-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the silver atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silver Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silver-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut silver atom has its 47 electrons on rings around a nucleus of 47 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silver Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cadmium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cadmium-bohr-model-animation.avif</image:loc><image:caption>The cadmium atom in motion: its 48 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cadmium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cadmium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the cadmium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cadmium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cadmium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the cadmium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cadmium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cadmium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut cadmium atom has its 48 electrons on rings around a nucleus of 48 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cadmium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/indium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/indium-bohr-model-animation.avif</image:loc><image:caption>The indium atom in motion: its 49 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Indium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/indium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the indium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Indium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/indium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the indium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Indium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/indium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut indium atom has its 49 electrons on rings around a nucleus of 49 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Indium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tin-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tin-bohr-model-animation.avif</image:loc><image:caption>The tin atom in motion: its 50 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tin Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tin-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the tin atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tin Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tin-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the tin atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tin Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tin-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut tin atom has its 50 electrons on rings around a nucleus of 50 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tin Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/antimony-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/antimony-bohr-model-animation.avif</image:loc><image:caption>The antimony atom in motion: its 51 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Antimony Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/antimony-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the antimony atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Antimony Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/antimony-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the antimony atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Antimony Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/antimony-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut antimony atom has its 51 electrons on rings around a nucleus of 51 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Antimony Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tellurium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tellurium-bohr-model-animation.avif</image:loc><image:caption>The tellurium atom in motion: its 52 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tellurium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tellurium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the tellurium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tellurium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tellurium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the tellurium atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tellurium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tellurium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut tellurium atom has its 52 electrons on rings around a nucleus of 52 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tellurium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/iodine-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/iodine-bohr-model-animation.avif</image:loc><image:caption>The iodine atom in motion: its 53 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iodine Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iodine-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the iodine atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iodine Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iodine-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the iodine atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iodine Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iodine-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut iodine atom has its 53 electrons on rings around a nucleus of 53 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iodine Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/xenon-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/xenon-bohr-model-animation.avif</image:loc><image:caption>The xenon atom in motion: its 54 electrons travel round 5 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Xenon Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/xenon-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the xenon atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Xenon Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/xenon-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the xenon atom show how its electrons are spread over 5 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Xenon Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/xenon-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut xenon atom has its 54 electrons on rings around a nucleus of 54 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Xenon Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cesium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cesium-bohr-model-animation.avif</image:loc><image:caption>The cesium atom in motion: its 55 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cesium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cesium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the cesium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cesium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cesium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the cesium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cesium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cesium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut cesium atom has its 55 electrons on rings around a nucleus of 55 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cesium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/barium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/barium-bohr-model-animation.avif</image:loc><image:caption>The barium atom in motion: its 56 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Barium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/barium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the barium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Barium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/barium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the barium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Barium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/barium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut barium atom has its 56 electrons on rings around a nucleus of 56 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Barium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lanthanum-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lanthanum-bohr-model-animation.avif</image:loc><image:caption>The lanthanum atom in motion: its 57 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lanthanum Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lanthanum-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the lanthanum atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lanthanum Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lanthanum-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the lanthanum atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lanthanum Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lanthanum-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut lanthanum atom has its 57 electrons on rings around a nucleus of 57 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lanthanum Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cerium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cerium-bohr-model-animation.avif</image:loc><image:caption>The cerium atom in motion: its 58 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cerium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cerium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the cerium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cerium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cerium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the cerium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cerium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cerium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut cerium atom has its 58 electrons on rings around a nucleus of 58 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cerium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/praseodymium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/praseodymium-bohr-model-animation.avif</image:loc><image:caption>The praseodymium atom in motion: its 59 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Praseodymium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/praseodymium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the praseodymium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Praseodymium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/praseodymium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the praseodymium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Praseodymium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/praseodymium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut praseodymium atom has its 59 electrons on rings around a nucleus of 59 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Praseodymium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/neodymium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/neodymium-bohr-model-animation.avif</image:loc><image:caption>The neodymium atom in motion: its 60 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neodymium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neodymium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the neodymium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neodymium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neodymium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the neodymium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neodymium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neodymium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut neodymium atom has its 60 electrons on rings around a nucleus of 60 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neodymium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/promethium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/promethium-bohr-model-animation.avif</image:loc><image:caption>The promethium atom in motion: its 61 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Promethium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/promethium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the promethium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Promethium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/promethium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the promethium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Promethium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/promethium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut promethium atom has its 61 electrons on rings around a nucleus of 61 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Promethium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/samarium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/samarium-bohr-model-animation.avif</image:loc><image:caption>The samarium atom in motion: its 62 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Samarium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/samarium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the samarium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Samarium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/samarium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the samarium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Samarium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/samarium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut samarium atom has its 62 electrons on rings around a nucleus of 62 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Samarium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/europium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/europium-bohr-model-animation.avif</image:loc><image:caption>The europium atom in motion: its 63 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Europium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/europium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the europium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Europium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/europium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the europium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Europium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/europium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut europium atom has its 63 electrons on rings around a nucleus of 63 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Europium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/gadolinium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/gadolinium-bohr-model-animation.avif</image:loc><image:caption>The gadolinium atom in motion: its 64 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gadolinium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gadolinium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the gadolinium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gadolinium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gadolinium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the gadolinium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gadolinium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gadolinium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut gadolinium atom has its 64 electrons on rings around a nucleus of 64 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gadolinium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/terbium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/terbium-bohr-model-animation.avif</image:loc><image:caption>The terbium atom in motion: its 65 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Terbium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/terbium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the terbium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Terbium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/terbium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the terbium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Terbium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/terbium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut terbium atom has its 65 electrons on rings around a nucleus of 65 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Terbium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/dysprosium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/dysprosium-bohr-model-animation.avif</image:loc><image:caption>The dysprosium atom in motion: its 66 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dysprosium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dysprosium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the dysprosium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dysprosium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dysprosium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the dysprosium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dysprosium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dysprosium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut dysprosium atom has its 66 electrons on rings around a nucleus of 66 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dysprosium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/holmium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/holmium-bohr-model-animation.avif</image:loc><image:caption>The holmium atom in motion: its 67 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Holmium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/holmium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the holmium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Holmium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/holmium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the holmium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Holmium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/holmium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut holmium atom has its 67 electrons on rings around a nucleus of 67 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Holmium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/erbium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/erbium-bohr-model-animation.avif</image:loc><image:caption>The erbium atom in motion: its 68 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Erbium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/erbium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the erbium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Erbium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/erbium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the erbium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Erbium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/erbium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut erbium atom has its 68 electrons on rings around a nucleus of 68 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Erbium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/thulium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/thulium-bohr-model-animation.avif</image:loc><image:caption>The thulium atom in motion: its 69 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thulium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thulium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the thulium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thulium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thulium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the thulium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thulium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thulium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut thulium atom has its 69 electrons on rings around a nucleus of 69 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thulium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/ytterbium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/ytterbium-bohr-model-animation.avif</image:loc><image:caption>The ytterbium atom in motion: its 70 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ytterbium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ytterbium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the ytterbium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ytterbium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ytterbium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the ytterbium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ytterbium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ytterbium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut ytterbium atom has its 70 electrons on rings around a nucleus of 70 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ytterbium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lutetium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lutetium-bohr-model-animation.avif</image:loc><image:caption>The lutetium atom in motion: its 71 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lutetium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lutetium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the lutetium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lutetium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lutetium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the lutetium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lutetium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lutetium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut lutetium atom has its 71 electrons on rings around a nucleus of 71 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lutetium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/hafnium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/hafnium-bohr-model-animation.avif</image:loc><image:caption>The hafnium atom in motion: its 72 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hafnium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hafnium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the hafnium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hafnium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hafnium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the hafnium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hafnium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hafnium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut hafnium atom has its 72 electrons on rings around a nucleus of 72 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hafnium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tantalum-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tantalum-bohr-model-animation.avif</image:loc><image:caption>The tantalum atom in motion: its 73 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tantalum Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tantalum-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the tantalum atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tantalum Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tantalum-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the tantalum atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tantalum Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tantalum-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut tantalum atom has its 73 electrons on rings around a nucleus of 73 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tantalum Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tungsten-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tungsten-bohr-model-animation.avif</image:loc><image:caption>The tungsten atom in motion: its 74 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tungsten Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tungsten-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the tungsten atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tungsten Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tungsten-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the tungsten atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tungsten Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tungsten-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut tungsten atom has its 74 electrons on rings around a nucleus of 74 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tungsten Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rhenium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rhenium-bohr-model-animation.avif</image:loc><image:caption>The rhenium atom in motion: its 75 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhenium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhenium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the rhenium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhenium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhenium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the rhenium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhenium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhenium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut rhenium atom has its 75 electrons on rings around a nucleus of 75 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhenium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/osmium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/osmium-bohr-model-animation.avif</image:loc><image:caption>The osmium atom in motion: its 76 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Osmium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/osmium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the osmium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Osmium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/osmium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the osmium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Osmium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/osmium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut osmium atom has its 76 electrons on rings around a nucleus of 76 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Osmium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/iridium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/iridium-bohr-model-animation.avif</image:loc><image:caption>The iridium atom in motion: its 77 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iridium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iridium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the iridium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iridium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iridium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the iridium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iridium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iridium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut iridium atom has its 77 electrons on rings around a nucleus of 77 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iridium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/platinum-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/platinum-bohr-model-animation.avif</image:loc><image:caption>The platinum atom in motion: its 78 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Platinum Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/platinum-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the platinum atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Platinum Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/platinum-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the platinum atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Platinum Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/platinum-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut platinum atom has its 78 electrons on rings around a nucleus of 78 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Platinum Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/gold-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/gold-bohr-model-animation.avif</image:loc><image:caption>The gold atom in motion: its 79 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gold Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gold-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the gold atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gold Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/gold-element-periodic-table/images/gold-density-compared-with-tungsten-lead-silver-platinum.svg</image:loc><image:caption>Gold and its closest cheap look-alike differ by only 0.05 g/cm³, which is why plated fakes need more than a scale to catch.</image:caption><image:title>Bar chart ranking platinum, gold, tungsten, lead and silver by weight per cubic centimetre, with gold at 19.30 nearly matching tungsten at 19.25</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gold-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the gold atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gold Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/gold-element-periodic-table/images/gold-karat-purity-fine-gold-vs-alloy.svg</image:loc><image:caption>The same 4.2 g ring holds 4.20 g of gold at 24k but only 2.45 g at 14k.</image:caption><image:title>Stacked bar chart splitting a 4.2 g ring into fine gold and alloy metal at 24k, 22k, 18k, 14k and 10k</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/gold-element-periodic-table/images/gold-uses-jewelry-investment-industry-share.svg</image:loc><image:caption>Roughly half of new supply is made into ornaments, two-fifths is bought as bars and coins, and a tenth goes to technology.</image:caption><image:title>Donut chart showing new gold supply split into 50% jewelry, 40% investment and 10% industry</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gold-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut gold atom has its 79 electrons on rings around a nucleus of 79 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gold Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/mercury-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/mercury-bohr-model-animation.avif</image:loc><image:caption>The mercury atom in motion: its 80 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mercury Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/mercury-element-periodic-table/images/mercury-liquid-range-melting-boiling-point-comparison.svg</image:loc><image:caption>Mercury stays liquid across about 396 °C, the narrowest range of any metal.</image:caption><image:title>Dumbbell chart comparing melting and boiling points of bromine, mercury, caesium and lead, with liquid mercury spanning only −38.83 °C to 356.73 °C</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/mercury-element-periodic-table/images/mercury-stable-isotopes-natural-abundance.svg</image:loc><image:caption>Hg-202, Hg-200 and Hg-199 together make up about 70% of natural mercury.</image:caption><image:title>Bar chart ranking the seven stable isotopes of mercury by natural abundance, from Hg-202 at 29.86% down to Hg-196 at 0.15%</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mercury-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the mercury atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mercury Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mercury-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the mercury atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mercury Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/mercury-element-periodic-table/images/mercury-history-timeline-quicksilver-milestones.svg</image:loc><image:caption>Two centuries of mercury science, poisoning and regulation, from Priestley&#x27;s oxygen to a global treaty.</image:caption><image:title>Timeline of quicksilver milestones from oxygen isolated from mercuric oxide in 1774 to the Minamata Convention entering into force in 2017</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mercury-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut mercury atom has its 80 electrons on rings around a nucleus of 80 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mercury Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/thallium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/thallium-bohr-model-animation.avif</image:loc><image:caption>The thallium atom in motion: its 81 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thallium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thallium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the thallium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thallium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thallium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the thallium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thallium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thallium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut thallium atom has its 81 electrons on rings around a nucleus of 81 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thallium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lead-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lead-bohr-model-animation.avif</image:loc><image:caption>The lead atom in motion: its 82 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lead Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lead-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the lead atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lead Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lead-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the lead atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lead Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lead-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut lead atom has its 82 electrons on rings around a nucleus of 82 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lead Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/bismuth-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/bismuth-bohr-model-animation.avif</image:loc><image:caption>The bismuth atom in motion: its 83 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bismuth Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bismuth-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the bismuth atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bismuth Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bismuth-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the bismuth atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bismuth Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bismuth-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut bismuth atom has its 83 electrons on rings around a nucleus of 83 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bismuth Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/polonium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/polonium-bohr-model-animation.avif</image:loc><image:caption>The polonium atom in motion: its 84 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Polonium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/polonium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the polonium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Polonium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/polonium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the polonium atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Polonium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/polonium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut polonium atom has its 84 electrons on rings around a nucleus of 84 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Polonium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/astatine-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/astatine-bohr-model-animation.avif</image:loc><image:caption>The astatine atom in motion: its 85 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Astatine Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/astatine-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the astatine atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Astatine Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/astatine-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the astatine atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Astatine Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/astatine-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut astatine atom has its 85 electrons on rings around a nucleus of 85 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Astatine Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/radon-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/radon-bohr-model-animation.avif</image:loc><image:caption>The radon atom in motion: its 86 electrons travel round 6 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radon Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radon-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the radon atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radon Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/radon-element-periodic-table/images/radon-222-half-life-decay-curve.svg</image:loc><image:caption>Radon-222 loses half its activity every 3.8 days, which is why radon has to be constantly replenished by radium decay.</image:caption><image:title>Line chart of a radon-222 sample decaying over 42 days, falling to half at 3.8 days and to 1/2,048 after 11 half-lives</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radon-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the radon atom show how its electrons are spread over 6 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radon Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/radon-element-periodic-table/images/radon-element-discovery-timeline.svg</image:loc><image:caption>Radon went through several names, from emanation and niton to radon, before IUPAC settled it in 1923.</image:caption><image:title>Timeline of radon&#x27;s discovery from emanation in 1899 through Ramsay&#x27;s noble gas proposal, the name niton in 1910 and IUPAC&#x27;s choice of radon in 1923</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/radon-element-periodic-table/images/indoor-radon-levels-vs-guidelines.svg</image:loc><image:caption>An example basement reading of 6.2 pCi/L (229.4 Bq/m³) set against the main home radon guidelines.</image:caption><image:title>Bar chart comparing an example indoor radon concentration of 229.4 Bq/m³ with the EU new-home level, EPA action level, WHO reference level and outdoor air</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radon-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut radon atom has its 86 electrons on rings around a nucleus of 86 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radon Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/francium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/francium-bohr-model-animation.avif</image:loc><image:caption>The francium atom in motion: its 87 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Francium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/francium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the francium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Francium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/francium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the francium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Francium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/francium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut francium atom has its 87 electrons on rings around a nucleus of 87 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Francium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/radium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/radium-bohr-model-animation.avif</image:loc><image:caption>The radium atom in motion: its 88 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the radium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the radium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut radium atom has its 88 electrons on rings around a nucleus of 88 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/actinium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/actinium-bohr-model-animation.avif</image:loc><image:caption>The actinium atom in motion: its 89 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Actinium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/actinium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the actinium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Actinium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/actinium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the actinium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Actinium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/actinium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut actinium atom has its 89 electrons on rings around a nucleus of 89 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Actinium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/thorium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/thorium-bohr-model-animation.avif</image:loc><image:caption>The thorium atom in motion: its 90 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thorium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thorium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the thorium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thorium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thorium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the thorium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thorium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thorium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut thorium atom has its 90 electrons on rings around a nucleus of 90 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thorium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/protactinium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/protactinium-bohr-model-animation.avif</image:loc><image:caption>The protactinium atom in motion: its 91 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Protactinium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/protactinium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the protactinium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Protactinium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/protactinium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the protactinium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Protactinium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/protactinium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut protactinium atom has its 91 electrons on rings around a nucleus of 91 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Protactinium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/uranium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/uranium-bohr-model-animation.avif</image:loc><image:caption>The uranium atom in motion: its 92 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Uranium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/uranium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the uranium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Uranium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/uranium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the uranium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Uranium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/uranium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut uranium atom has its 92 electrons on rings around a nucleus of 92 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Uranium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/neptunium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/neptunium-bohr-model-animation.avif</image:loc><image:caption>The neptunium atom in motion: its 93 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neptunium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neptunium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the neptunium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neptunium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neptunium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the neptunium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neptunium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neptunium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut neptunium atom has its 93 electrons on rings around a nucleus of 93 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neptunium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/plutonium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/plutonium-bohr-model-animation.avif</image:loc><image:caption>The plutonium atom in motion: its 94 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Plutonium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/plutonium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the plutonium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Plutonium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/plutonium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the plutonium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Plutonium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/plutonium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut plutonium atom has its 94 electrons on rings around a nucleus of 94 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Plutonium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/americium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/americium-bohr-model-animation.avif</image:loc><image:caption>The americium atom in motion: its 95 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Americium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/americium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the americium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Americium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/americium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the americium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Americium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/americium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut americium atom has its 95 electrons on rings around a nucleus of 95 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Americium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/curium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/curium-bohr-model-animation.avif</image:loc><image:caption>The curium atom in motion: its 96 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Curium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/curium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the curium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Curium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/curium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the curium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Curium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/curium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut curium atom has its 96 electrons on rings around a nucleus of 96 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Curium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/berkelium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/berkelium-bohr-model-animation.avif</image:loc><image:caption>The berkelium atom in motion: its 97 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Berkelium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/berkelium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the berkelium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Berkelium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/berkelium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the berkelium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Berkelium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/berkelium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut berkelium atom has its 97 electrons on rings around a nucleus of 97 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Berkelium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/californium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/californium-bohr-model-animation.avif</image:loc><image:caption>The californium atom in motion: its 98 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Californium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/californium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the californium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Californium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/californium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the californium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Californium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/californium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut californium atom has its 98 electrons on rings around a nucleus of 98 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Californium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/einsteinium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/einsteinium-bohr-model-animation.avif</image:loc><image:caption>The einsteinium atom in motion: its 99 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Einsteinium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/einsteinium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the einsteinium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Einsteinium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/einsteinium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the einsteinium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Einsteinium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/einsteinium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut einsteinium atom has its 99 electrons on rings around a nucleus of 99 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Einsteinium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/fermium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/fermium-bohr-model-animation.avif</image:loc><image:caption>The fermium atom in motion: its 100 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fermium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fermium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the fermium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fermium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fermium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the fermium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fermium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fermium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut fermium atom has its 100 electrons on rings around a nucleus of 100 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fermium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/mendelevium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/mendelevium-bohr-model-animation.avif</image:loc><image:caption>The mendelevium atom in motion: its 101 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mendelevium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mendelevium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the mendelevium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mendelevium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mendelevium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the mendelevium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mendelevium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mendelevium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut mendelevium atom has its 101 electrons on rings around a nucleus of 101 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mendelevium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nobelium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nobelium-bohr-model-animation.avif</image:loc><image:caption>The nobelium atom in motion: its 102 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nobelium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nobelium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the nobelium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nobelium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nobelium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the nobelium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nobelium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nobelium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut nobelium atom has its 102 electrons on rings around a nucleus of 102 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nobelium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lawrencium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lawrencium-bohr-model-animation.avif</image:loc><image:caption>The lawrencium atom in motion: its 103 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lawrencium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lawrencium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the lawrencium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lawrencium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lawrencium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the lawrencium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lawrencium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lawrencium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut lawrencium atom has its 103 electrons on rings around a nucleus of 103 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lawrencium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rutherfordium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rutherfordium-bohr-model-animation.avif</image:loc><image:caption>The rutherfordium atom in motion: its 104 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rutherfordium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rutherfordium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the rutherfordium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rutherfordium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rutherfordium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the rutherfordium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rutherfordium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rutherfordium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut rutherfordium atom has its 104 electrons on rings around a nucleus of 104 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rutherfordium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/dubnium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/dubnium-bohr-model-animation.avif</image:loc><image:caption>The dubnium atom in motion: its 105 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dubnium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dubnium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the dubnium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dubnium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dubnium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the dubnium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dubnium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dubnium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut dubnium atom has its 105 electrons on rings around a nucleus of 105 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dubnium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/seaborgium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/seaborgium-bohr-model-animation.avif</image:loc><image:caption>The seaborgium atom in motion: its 106 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Seaborgium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/seaborgium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the seaborgium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Seaborgium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/seaborgium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the seaborgium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Seaborgium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/seaborgium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut seaborgium atom has its 106 electrons on rings around a nucleus of 106 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Seaborgium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/bohrium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/bohrium-bohr-model-animation.avif</image:loc><image:caption>The bohrium atom in motion: its 107 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bohrium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bohrium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the bohrium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bohrium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bohrium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the bohrium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bohrium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bohrium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut bohrium atom has its 107 electrons on rings around a nucleus of 107 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bohrium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/hassium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/hassium-bohr-model-animation.avif</image:loc><image:caption>The hassium atom in motion: its 108 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hassium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hassium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the hassium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hassium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hassium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the hassium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hassium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hassium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut hassium atom has its 108 electrons on rings around a nucleus of 108 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hassium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/meitnerium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/meitnerium-bohr-model-animation.avif</image:loc><image:caption>The meitnerium atom in motion: its 109 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Meitnerium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/meitnerium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the meitnerium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Meitnerium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/meitnerium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the meitnerium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Meitnerium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/meitnerium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut meitnerium atom has its 109 electrons on rings around a nucleus of 109 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Meitnerium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/darmstadtium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/darmstadtium-bohr-model-animation.avif</image:loc><image:caption>The darmstadtium atom in motion: its 110 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Darmstadtium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/darmstadtium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the darmstadtium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Darmstadtium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/darmstadtium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the darmstadtium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Darmstadtium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/darmstadtium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut darmstadtium atom has its 110 electrons on rings around a nucleus of 110 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Darmstadtium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/roentgenium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/roentgenium-bohr-model-animation.avif</image:loc><image:caption>The roentgenium atom in motion: its 111 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Roentgenium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/roentgenium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the roentgenium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Roentgenium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/roentgenium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the roentgenium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Roentgenium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/roentgenium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut roentgenium atom has its 111 electrons on rings around a nucleus of 111 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Roentgenium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/copernicium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/copernicium-bohr-model-animation.avif</image:loc><image:caption>The copernicium atom in motion: its 112 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copernicium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copernicium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the copernicium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copernicium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copernicium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the copernicium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copernicium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copernicium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut copernicium atom has its 112 electrons on rings around a nucleus of 112 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copernicium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nihonium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nihonium-bohr-model-animation.avif</image:loc><image:caption>The nihonium atom in motion: its 113 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nihonium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nihonium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the nihonium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nihonium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nihonium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the nihonium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nihonium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nihonium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut nihonium atom has its 113 electrons on rings around a nucleus of 113 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nihonium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/flerovium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/flerovium-bohr-model-animation.avif</image:loc><image:caption>The flerovium atom in motion: its 114 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Flerovium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/flerovium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the flerovium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Flerovium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/flerovium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the flerovium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Flerovium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/flerovium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut flerovium atom has its 114 electrons on rings around a nucleus of 114 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Flerovium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/moscovium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/moscovium-bohr-model-animation.avif</image:loc><image:caption>The moscovium atom in motion: its 115 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Moscovium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/moscovium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the moscovium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Moscovium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/moscovium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the moscovium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Moscovium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/moscovium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut moscovium atom has its 115 electrons on rings around a nucleus of 115 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Moscovium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/livermorium-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/livermorium-bohr-model-animation.avif</image:loc><image:caption>The livermorium atom in motion: its 116 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Livermorium Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/livermorium-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the livermorium atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Livermorium Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/livermorium-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the livermorium atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Livermorium Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/livermorium-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut livermorium atom has its 116 electrons on rings around a nucleus of 116 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Livermorium Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tennessine-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tennessine-bohr-model-animation.avif</image:loc><image:caption>The tennessine atom in motion: its 117 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tennessine Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tennessine-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the tennessine atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tennessine Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tennessine-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the tennessine atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tennessine Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tennessine-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut tennessine atom has its 117 electrons on rings around a nucleus of 117 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tennessine Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/oganesson-element-periodic-table/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/oganesson-bohr-model-animation.avif</image:loc><image:caption>The oganesson atom in motion: its 118 electrons travel round 7 shells while the camera circles the nucleus, in a six-second loop. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oganesson Bohr model, animated electron shells</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oganesson-bohr-model-quarter-cutaway.webp</image:loc><image:caption>A quarter of the oganesson atom&#x27;s outer shell is cut away so the nucleus and the rings of electrons show inside. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oganesson Bohr model, quarter cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oganesson-bohr-model-electron-shells-top-view.webp</image:loc><image:caption>Seen from directly above, the rings of the oganesson atom show how its electrons are spread over 7 shells. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oganesson Bohr model, electron shells seen from above</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oganesson-bohr-model-electron-shells-angled-cutaway.webp</image:loc><image:caption>Tilted to show depth, the half-cut oganesson atom has its 118 electrons on rings around a nucleus of 118 protons and neutrons. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oganesson Bohr model, angled cutaway</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
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  <url><loc>https://periodictable.page/periodic-table-pdf/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/bohr-model/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/hydrogen-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/hydrogen-bohr-model-diagram.svg</image:loc><image:caption>The hydrogen Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (1 in shell K).</image:caption><image:title>Hydrogen Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hydrogen-bohr-model-shell-build.avif</image:loc><image:caption>The hydrogen Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 1 in shell K. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hydrogen Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/helium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/helium-bohr-model-diagram.svg</image:loc><image:caption>The helium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K).</image:caption><image:title>Helium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/helium-bohr-model-shell-build.avif</image:loc><image:caption>The helium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Helium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lithium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lithium-bohr-model-diagram.svg</image:loc><image:caption>The lithium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 1 in shell L).</image:caption><image:title>Lithium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lithium-bohr-model-shell-build.avif</image:loc><image:caption>The lithium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 1 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lithium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/beryllium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/beryllium-bohr-model-diagram.svg</image:loc><image:caption>The beryllium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 2 in shell L).</image:caption><image:title>Beryllium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/beryllium-bohr-model-shell-build.avif</image:loc><image:caption>The beryllium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 2 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Beryllium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/boron-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/boron-bohr-model-diagram.svg</image:loc><image:caption>The boron Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 3 in shell L).</image:caption><image:title>Boron Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/boron-bohr-model-shell-build.avif</image:loc><image:caption>The boron Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 3 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Boron Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/carbon-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/carbon-bohr-model-diagram.svg</image:loc><image:caption>The carbon Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 4 in shell L).</image:caption><image:title>Carbon Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/carbon-bohr-model-shell-build.avif</image:loc><image:caption>The carbon Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 4 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Carbon Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nitrogen-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nitrogen-bohr-model-diagram.svg</image:loc><image:caption>The nitrogen Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 5 in shell L).</image:caption><image:title>Nitrogen Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nitrogen-bohr-model-shell-build.avif</image:loc><image:caption>The nitrogen Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 5 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nitrogen Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/oxygen-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/oxygen-bohr-model-diagram.svg</image:loc><image:caption>The oxygen Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 6 in shell L).</image:caption><image:title>Oxygen Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oxygen-bohr-model-shell-build.avif</image:loc><image:caption>The oxygen Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 6 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oxygen Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/fluorine-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/fluorine-bohr-model-diagram.svg</image:loc><image:caption>The fluorine Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 7 in shell L).</image:caption><image:title>Fluorine Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fluorine-bohr-model-shell-build.avif</image:loc><image:caption>The fluorine Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 7 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fluorine Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/neon-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/neon-bohr-model-diagram.svg</image:loc><image:caption>The neon Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K and 8 in shell L).</image:caption><image:title>Neon Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neon-bohr-model-shell-build.avif</image:loc><image:caption>The neon Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K and 8 in shell L. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neon Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/sodium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/sodium-bohr-model-diagram.svg</image:loc><image:caption>The sodium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 1 in shell M).</image:caption><image:title>Sodium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sodium-bohr-model-shell-build.avif</image:loc><image:caption>The sodium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 1 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sodium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/magnesium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/magnesium-bohr-model-diagram.svg</image:loc><image:caption>The magnesium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 2 in shell M).</image:caption><image:title>Magnesium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/magnesium-bohr-model-shell-build.avif</image:loc><image:caption>The magnesium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 2 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Magnesium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/aluminium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/aluminium-bohr-model-diagram.svg</image:loc><image:caption>The aluminium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 3 in shell M).</image:caption><image:title>Aluminium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/aluminium-bohr-model-shell-build.avif</image:loc><image:caption>The aluminium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 3 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Aluminium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/silicon-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/silicon-bohr-model-diagram.svg</image:loc><image:caption>The silicon Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 4 in shell M).</image:caption><image:title>Silicon Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silicon-bohr-model-shell-build.avif</image:loc><image:caption>The silicon Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 4 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silicon Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/phosphorus-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/phosphorus-bohr-model-diagram.svg</image:loc><image:caption>The phosphorus Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 5 in shell M).</image:caption><image:title>Phosphorus Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/phosphorus-bohr-model-shell-build.avif</image:loc><image:caption>The phosphorus Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 5 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Phosphorus Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/sulfur-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/sulfur-bohr-model-diagram.svg</image:loc><image:caption>The sulfur Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 6 in shell M).</image:caption><image:title>Sulfur Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/sulfur-bohr-model-shell-build.avif</image:loc><image:caption>The sulfur Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 6 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Sulfur Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/chlorine-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/chlorine-bohr-model-diagram.svg</image:loc><image:caption>The chlorine Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 7 in shell M).</image:caption><image:title>Chlorine Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chlorine-bohr-model-shell-build.avif</image:loc><image:caption>The chlorine Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 7 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chlorine Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/argon-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/argon-bohr-model-diagram.svg</image:loc><image:caption>The argon Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L and 8 in shell M).</image:caption><image:title>Argon Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/argon-bohr-model-shell-build.avif</image:loc><image:caption>The argon Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L and 8 in shell M. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Argon Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/potassium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/potassium-bohr-model-diagram.svg</image:loc><image:caption>The potassium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 8 in shell M and 1 in shell N).</image:caption><image:title>Potassium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/potassium-bohr-model-shell-build.avif</image:loc><image:caption>The potassium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 8 in shell M and 1 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Potassium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/calcium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/calcium-bohr-model-diagram.svg</image:loc><image:caption>The calcium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 8 in shell M and 2 in shell N).</image:caption><image:title>Calcium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/calcium-bohr-model-shell-build.avif</image:loc><image:caption>The calcium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 8 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Calcium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/scandium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/scandium-bohr-model-diagram.svg</image:loc><image:caption>The scandium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 9 in shell M and 2 in shell N).</image:caption><image:title>Scandium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/scandium-bohr-model-shell-build.avif</image:loc><image:caption>The scandium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 9 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Scandium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/titanium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/titanium-bohr-model-diagram.svg</image:loc><image:caption>The titanium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 10 in shell M and 2 in shell N).</image:caption><image:title>Titanium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/titanium-bohr-model-shell-build.avif</image:loc><image:caption>The titanium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 10 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Titanium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/vanadium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/vanadium-bohr-model-diagram.svg</image:loc><image:caption>The vanadium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 11 in shell M and 2 in shell N).</image:caption><image:title>Vanadium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/vanadium-bohr-model-shell-build.avif</image:loc><image:caption>The vanadium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 11 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Vanadium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/chromium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/chromium-bohr-model-diagram.svg</image:loc><image:caption>The chromium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 13 in shell M and 1 in shell N).</image:caption><image:title>Chromium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/chromium-bohr-model-shell-build.avif</image:loc><image:caption>The chromium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 13 in shell M and 1 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Chromium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/manganese-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/manganese-bohr-model-diagram.svg</image:loc><image:caption>The manganese Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 13 in shell M and 2 in shell N).</image:caption><image:title>Manganese Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/manganese-bohr-model-shell-build.avif</image:loc><image:caption>The manganese Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 13 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Manganese Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/iron-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/iron-bohr-model-diagram.svg</image:loc><image:caption>The iron Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 14 in shell M and 2 in shell N).</image:caption><image:title>Iron Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iron-bohr-model-shell-build.avif</image:loc><image:caption>The iron Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 14 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iron Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cobalt-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cobalt-bohr-model-diagram.svg</image:loc><image:caption>The cobalt Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 15 in shell M and 2 in shell N).</image:caption><image:title>Cobalt Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cobalt-bohr-model-shell-build.avif</image:loc><image:caption>The cobalt Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 15 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cobalt Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nickel-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nickel-bohr-model-diagram.svg</image:loc><image:caption>The nickel Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 16 in shell M and 2 in shell N).</image:caption><image:title>Nickel Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nickel-bohr-model-shell-build.avif</image:loc><image:caption>The nickel Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 16 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nickel Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/copper-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/copper-bohr-model-diagram.svg</image:loc><image:caption>The copper Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 1 in shell N).</image:caption><image:title>Copper Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copper-bohr-model-shell-build.avif</image:loc><image:caption>The copper Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 1 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copper Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/zinc-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/zinc-bohr-model-diagram.svg</image:loc><image:caption>The zinc Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 2 in shell N).</image:caption><image:title>Zinc Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zinc-bohr-model-shell-build.avif</image:loc><image:caption>The zinc Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 2 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zinc Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/gallium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/gallium-bohr-model-diagram.svg</image:loc><image:caption>The gallium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 3 in shell N).</image:caption><image:title>Gallium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gallium-bohr-model-shell-build.avif</image:loc><image:caption>The gallium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 3 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gallium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/germanium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/germanium-bohr-model-diagram.svg</image:loc><image:caption>The germanium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 4 in shell N).</image:caption><image:title>Germanium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/germanium-bohr-model-shell-build.avif</image:loc><image:caption>The germanium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 4 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Germanium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/arsenic-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/arsenic-bohr-model-diagram.svg</image:loc><image:caption>The arsenic Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 5 in shell N).</image:caption><image:title>Arsenic Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/arsenic-bohr-model-shell-build.avif</image:loc><image:caption>The arsenic Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 5 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Arsenic Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/selenium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/selenium-bohr-model-diagram.svg</image:loc><image:caption>The selenium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 6 in shell N).</image:caption><image:title>Selenium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/selenium-bohr-model-shell-build.avif</image:loc><image:caption>The selenium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 6 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Selenium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/bromine-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/bromine-bohr-model-diagram.svg</image:loc><image:caption>The bromine Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 7 in shell N).</image:caption><image:title>Bromine Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bromine-bohr-model-shell-build.avif</image:loc><image:caption>The bromine Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 7 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bromine Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/krypton-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/krypton-bohr-model-diagram.svg</image:loc><image:caption>The krypton Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 8 in shell N).</image:caption><image:title>Krypton Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/krypton-bohr-model-shell-build.avif</image:loc><image:caption>The krypton Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 8 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Krypton Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rubidium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rubidium-bohr-model-diagram.svg</image:loc><image:caption>The rubidium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 8 in shell N and 1 in shell O).</image:caption><image:title>Rubidium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rubidium-bohr-model-shell-build.avif</image:loc><image:caption>The rubidium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 8 in shell N and 1 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rubidium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/strontium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/strontium-bohr-model-diagram.svg</image:loc><image:caption>The strontium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 8 in shell N and 2 in shell O).</image:caption><image:title>Strontium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/strontium-bohr-model-shell-build.avif</image:loc><image:caption>The strontium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 8 in shell N and 2 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Strontium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/yttrium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/yttrium-bohr-model-diagram.svg</image:loc><image:caption>The yttrium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 9 in shell N and 2 in shell O).</image:caption><image:title>Yttrium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/yttrium-bohr-model-shell-build.avif</image:loc><image:caption>The yttrium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 9 in shell N and 2 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Yttrium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/zirconium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/zirconium-bohr-model-diagram.svg</image:loc><image:caption>The zirconium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 10 in shell N and 2 in shell O).</image:caption><image:title>Zirconium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/zirconium-bohr-model-shell-build.avif</image:loc><image:caption>The zirconium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 10 in shell N and 2 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Zirconium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/niobium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/niobium-bohr-model-diagram.svg</image:loc><image:caption>The niobium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 12 in shell N and 1 in shell O).</image:caption><image:title>Niobium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/niobium-bohr-model-shell-build.avif</image:loc><image:caption>The niobium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 12 in shell N and 1 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Niobium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/molybdenum-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/molybdenum-bohr-model-diagram.svg</image:loc><image:caption>The molybdenum Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 13 in shell N and 1 in shell O).</image:caption><image:title>Molybdenum Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/molybdenum-bohr-model-shell-build.avif</image:loc><image:caption>The molybdenum Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 13 in shell N and 1 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Molybdenum Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/technetium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/technetium-bohr-model-diagram.svg</image:loc><image:caption>The technetium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 13 in shell N and 2 in shell O).</image:caption><image:title>Technetium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/technetium-bohr-model-shell-build.avif</image:loc><image:caption>The technetium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 13 in shell N and 2 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Technetium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/ruthenium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/ruthenium-bohr-model-diagram.svg</image:loc><image:caption>The ruthenium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 15 in shell N and 1 in shell O).</image:caption><image:title>Ruthenium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ruthenium-bohr-model-shell-build.avif</image:loc><image:caption>The ruthenium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 15 in shell N and 1 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ruthenium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rhodium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rhodium-bohr-model-diagram.svg</image:loc><image:caption>The rhodium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 16 in shell N and 1 in shell O).</image:caption><image:title>Rhodium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhodium-bohr-model-shell-build.avif</image:loc><image:caption>The rhodium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 16 in shell N and 1 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhodium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/palladium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/palladium-bohr-model-diagram.svg</image:loc><image:caption>The palladium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M and 18 in shell N).</image:caption><image:title>Palladium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/palladium-bohr-model-shell-build.avif</image:loc><image:caption>The palladium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M and 18 in shell N. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Palladium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/silver-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/silver-bohr-model-diagram.svg</image:loc><image:caption>The silver Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 1 in shell O).</image:caption><image:title>Silver Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/silver-bohr-model-shell-build.avif</image:loc><image:caption>The silver Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 1 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Silver Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cadmium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cadmium-bohr-model-diagram.svg</image:loc><image:caption>The cadmium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 2 in shell O).</image:caption><image:title>Cadmium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cadmium-bohr-model-shell-build.avif</image:loc><image:caption>The cadmium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 2 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cadmium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/indium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/indium-bohr-model-diagram.svg</image:loc><image:caption>The indium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 3 in shell O).</image:caption><image:title>Indium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/indium-bohr-model-shell-build.avif</image:loc><image:caption>The indium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 3 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Indium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tin-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tin-bohr-model-diagram.svg</image:loc><image:caption>The tin Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 4 in shell O).</image:caption><image:title>Tin Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tin-bohr-model-shell-build.avif</image:loc><image:caption>The tin Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 4 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tin Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/antimony-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/antimony-bohr-model-diagram.svg</image:loc><image:caption>The antimony Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 5 in shell O).</image:caption><image:title>Antimony Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/antimony-bohr-model-shell-build.avif</image:loc><image:caption>The antimony Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 5 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Antimony Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tellurium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tellurium-bohr-model-diagram.svg</image:loc><image:caption>The tellurium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 6 in shell O).</image:caption><image:title>Tellurium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tellurium-bohr-model-shell-build.avif</image:loc><image:caption>The tellurium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 6 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tellurium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/iodine-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/iodine-bohr-model-diagram.svg</image:loc><image:caption>The iodine Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 7 in shell O).</image:caption><image:title>Iodine Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iodine-bohr-model-shell-build.avif</image:loc><image:caption>The iodine Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 7 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iodine Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/xenon-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/xenon-bohr-model-diagram.svg</image:loc><image:caption>The xenon Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 8 in shell O).</image:caption><image:title>Xenon Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/xenon-bohr-model-shell-build.avif</image:loc><image:caption>The xenon Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N and 8 in shell O. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Xenon Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cesium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cesium-bohr-model-diagram.svg</image:loc><image:caption>The cesium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N, 8 in shell O and 1 in shell P).</image:caption><image:title>Cesium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cesium-bohr-model-shell-build.avif</image:loc><image:caption>The cesium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N, 8 in shell O and 1 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cesium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/barium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/barium-bohr-model-diagram.svg</image:loc><image:caption>The barium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Barium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/barium-bohr-model-shell-build.avif</image:loc><image:caption>The barium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Barium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lanthanum-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lanthanum-bohr-model-diagram.svg</image:loc><image:caption>The lanthanum Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N, 9 in shell O and 2 in shell P).</image:caption><image:title>Lanthanum Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lanthanum-bohr-model-shell-build.avif</image:loc><image:caption>The lanthanum Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 18 in shell N, 9 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lanthanum Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/cerium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/cerium-bohr-model-diagram.svg</image:loc><image:caption>The cerium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 19 in shell N, 9 in shell O and 2 in shell P).</image:caption><image:title>Cerium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/cerium-bohr-model-shell-build.avif</image:loc><image:caption>The cerium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 19 in shell N, 9 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Cerium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/praseodymium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/praseodymium-bohr-model-diagram.svg</image:loc><image:caption>The praseodymium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 21 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Praseodymium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/praseodymium-bohr-model-shell-build.avif</image:loc><image:caption>The praseodymium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 21 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Praseodymium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/neodymium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/neodymium-bohr-model-diagram.svg</image:loc><image:caption>The neodymium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 22 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Neodymium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neodymium-bohr-model-shell-build.avif</image:loc><image:caption>The neodymium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 22 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neodymium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/promethium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/promethium-bohr-model-diagram.svg</image:loc><image:caption>The promethium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 23 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Promethium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/promethium-bohr-model-shell-build.avif</image:loc><image:caption>The promethium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 23 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Promethium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/samarium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/samarium-bohr-model-diagram.svg</image:loc><image:caption>The samarium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 24 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Samarium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/samarium-bohr-model-shell-build.avif</image:loc><image:caption>The samarium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 24 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Samarium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/europium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/europium-bohr-model-diagram.svg</image:loc><image:caption>The europium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 25 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Europium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/europium-bohr-model-shell-build.avif</image:loc><image:caption>The europium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 25 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Europium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/gadolinium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/gadolinium-bohr-model-diagram.svg</image:loc><image:caption>The gadolinium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 25 in shell N, 9 in shell O and 2 in shell P).</image:caption><image:title>Gadolinium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gadolinium-bohr-model-shell-build.avif</image:loc><image:caption>The gadolinium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 25 in shell N, 9 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gadolinium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/terbium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/terbium-bohr-model-diagram.svg</image:loc><image:caption>The terbium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 27 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Terbium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/terbium-bohr-model-shell-build.avif</image:loc><image:caption>The terbium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 27 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Terbium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/dysprosium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/dysprosium-bohr-model-diagram.svg</image:loc><image:caption>The dysprosium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 28 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Dysprosium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dysprosium-bohr-model-shell-build.avif</image:loc><image:caption>The dysprosium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 28 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dysprosium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/holmium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/holmium-bohr-model-diagram.svg</image:loc><image:caption>The holmium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 29 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Holmium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/holmium-bohr-model-shell-build.avif</image:loc><image:caption>The holmium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 29 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Holmium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/erbium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/erbium-bohr-model-diagram.svg</image:loc><image:caption>The erbium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 30 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Erbium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/erbium-bohr-model-shell-build.avif</image:loc><image:caption>The erbium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 30 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Erbium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/thulium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/thulium-bohr-model-diagram.svg</image:loc><image:caption>The thulium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 31 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Thulium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thulium-bohr-model-shell-build.avif</image:loc><image:caption>The thulium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 31 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thulium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/ytterbium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/ytterbium-bohr-model-diagram.svg</image:loc><image:caption>The ytterbium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 8 in shell O and 2 in shell P).</image:caption><image:title>Ytterbium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/ytterbium-bohr-model-shell-build.avif</image:loc><image:caption>The ytterbium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 8 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Ytterbium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lutetium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lutetium-bohr-model-diagram.svg</image:loc><image:caption>The lutetium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 9 in shell O and 2 in shell P).</image:caption><image:title>Lutetium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lutetium-bohr-model-shell-build.avif</image:loc><image:caption>The lutetium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 9 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lutetium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/hafnium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/hafnium-bohr-model-diagram.svg</image:loc><image:caption>The hafnium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 10 in shell O and 2 in shell P).</image:caption><image:title>Hafnium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hafnium-bohr-model-shell-build.avif</image:loc><image:caption>The hafnium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 10 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hafnium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tantalum-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tantalum-bohr-model-diagram.svg</image:loc><image:caption>The tantalum Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 11 in shell O and 2 in shell P).</image:caption><image:title>Tantalum Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tantalum-bohr-model-shell-build.avif</image:loc><image:caption>The tantalum Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 11 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tantalum Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tungsten-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tungsten-bohr-model-diagram.svg</image:loc><image:caption>The tungsten Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 12 in shell O and 2 in shell P).</image:caption><image:title>Tungsten Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tungsten-bohr-model-shell-build.avif</image:loc><image:caption>The tungsten Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 12 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tungsten Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rhenium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rhenium-bohr-model-diagram.svg</image:loc><image:caption>The rhenium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 13 in shell O and 2 in shell P).</image:caption><image:title>Rhenium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rhenium-bohr-model-shell-build.avif</image:loc><image:caption>The rhenium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 13 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rhenium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/osmium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/osmium-bohr-model-diagram.svg</image:loc><image:caption>The osmium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 14 in shell O and 2 in shell P).</image:caption><image:title>Osmium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/osmium-bohr-model-shell-build.avif</image:loc><image:caption>The osmium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 14 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Osmium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/iridium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/iridium-bohr-model-diagram.svg</image:loc><image:caption>The iridium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 15 in shell O and 2 in shell P).</image:caption><image:title>Iridium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/iridium-bohr-model-shell-build.avif</image:loc><image:caption>The iridium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 15 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Iridium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/platinum-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/platinum-bohr-model-diagram.svg</image:loc><image:caption>The platinum Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 17 in shell O and 1 in shell P).</image:caption><image:title>Platinum Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/platinum-bohr-model-shell-build.avif</image:loc><image:caption>The platinum Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 17 in shell O and 1 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Platinum Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/gold-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/gold-bohr-model-diagram.svg</image:loc><image:caption>The gold Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 1 in shell P).</image:caption><image:title>Gold Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/gold-bohr-model-shell-build.avif</image:loc><image:caption>The gold Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 1 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Gold Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/mercury-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/mercury-bohr-model-diagram.svg</image:loc><image:caption>The mercury Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 2 in shell P).</image:caption><image:title>Mercury Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mercury-bohr-model-shell-build.avif</image:loc><image:caption>The mercury Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 2 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mercury Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/thallium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/thallium-bohr-model-diagram.svg</image:loc><image:caption>The thallium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 3 in shell P).</image:caption><image:title>Thallium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thallium-bohr-model-shell-build.avif</image:loc><image:caption>The thallium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 3 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thallium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lead-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lead-bohr-model-diagram.svg</image:loc><image:caption>The lead Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 4 in shell P).</image:caption><image:title>Lead Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lead-bohr-model-shell-build.avif</image:loc><image:caption>The lead Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 4 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lead Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/bismuth-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/bismuth-bohr-model-diagram.svg</image:loc><image:caption>The bismuth Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 5 in shell P).</image:caption><image:title>Bismuth Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bismuth-bohr-model-shell-build.avif</image:loc><image:caption>The bismuth Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 5 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bismuth Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/polonium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/polonium-bohr-model-diagram.svg</image:loc><image:caption>The polonium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 6 in shell P).</image:caption><image:title>Polonium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/polonium-bohr-model-shell-build.avif</image:loc><image:caption>The polonium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 6 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Polonium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/astatine-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/astatine-bohr-model-diagram.svg</image:loc><image:caption>The astatine Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 7 in shell P).</image:caption><image:title>Astatine Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/astatine-bohr-model-shell-build.avif</image:loc><image:caption>The astatine Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 7 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Astatine Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/radon-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/radon-bohr-model-diagram.svg</image:loc><image:caption>The radon Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 8 in shell P).</image:caption><image:title>Radon Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radon-bohr-model-shell-build.avif</image:loc><image:caption>The radon Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O and 8 in shell P. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radon Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/francium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/francium-bohr-model-diagram.svg</image:loc><image:caption>The francium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 8 in shell P and 1 in shell Q).</image:caption><image:title>Francium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/francium-bohr-model-shell-build.avif</image:loc><image:caption>The francium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 8 in shell P and 1 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Francium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/radium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/radium-bohr-model-diagram.svg</image:loc><image:caption>The radium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Radium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/radium-bohr-model-shell-build.avif</image:loc><image:caption>The radium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Radium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/actinium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/actinium-bohr-model-diagram.svg</image:loc><image:caption>The actinium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 9 in shell P and 2 in shell Q).</image:caption><image:title>Actinium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/actinium-bohr-model-shell-build.avif</image:loc><image:caption>The actinium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 9 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Actinium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/thorium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/thorium-bohr-model-diagram.svg</image:loc><image:caption>The thorium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 10 in shell P and 2 in shell Q).</image:caption><image:title>Thorium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/thorium-bohr-model-shell-build.avif</image:loc><image:caption>The thorium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 18 in shell O, 10 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Thorium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/protactinium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/protactinium-bohr-model-diagram.svg</image:loc><image:caption>The protactinium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 20 in shell O, 9 in shell P and 2 in shell Q).</image:caption><image:title>Protactinium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/protactinium-bohr-model-shell-build.avif</image:loc><image:caption>The protactinium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 20 in shell O, 9 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Protactinium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/uranium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/uranium-bohr-model-diagram.svg</image:loc><image:caption>The uranium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 21 in shell O, 9 in shell P and 2 in shell Q).</image:caption><image:title>Uranium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/uranium-bohr-model-shell-build.avif</image:loc><image:caption>The uranium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 21 in shell O, 9 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Uranium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/neptunium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/neptunium-bohr-model-diagram.svg</image:loc><image:caption>The neptunium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 22 in shell O, 9 in shell P and 2 in shell Q).</image:caption><image:title>Neptunium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/neptunium-bohr-model-shell-build.avif</image:loc><image:caption>The neptunium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 22 in shell O, 9 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Neptunium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/plutonium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/plutonium-bohr-model-diagram.svg</image:loc><image:caption>The plutonium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 24 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Plutonium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/plutonium-bohr-model-shell-build.avif</image:loc><image:caption>The plutonium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 24 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Plutonium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/americium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/americium-bohr-model-diagram.svg</image:loc><image:caption>The americium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 25 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Americium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/americium-bohr-model-shell-build.avif</image:loc><image:caption>The americium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 25 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Americium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/curium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/curium-bohr-model-diagram.svg</image:loc><image:caption>The curium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 25 in shell O, 9 in shell P and 2 in shell Q).</image:caption><image:title>Curium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/curium-bohr-model-shell-build.avif</image:loc><image:caption>The curium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 25 in shell O, 9 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Curium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/berkelium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/berkelium-bohr-model-diagram.svg</image:loc><image:caption>The berkelium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 27 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Berkelium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/berkelium-bohr-model-shell-build.avif</image:loc><image:caption>The berkelium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 27 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Berkelium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/californium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/californium-bohr-model-diagram.svg</image:loc><image:caption>The californium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 28 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Californium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/californium-bohr-model-shell-build.avif</image:loc><image:caption>The californium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 28 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Californium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/einsteinium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/einsteinium-bohr-model-diagram.svg</image:loc><image:caption>The einsteinium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 29 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Einsteinium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/einsteinium-bohr-model-shell-build.avif</image:loc><image:caption>The einsteinium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 29 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Einsteinium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/fermium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/fermium-bohr-model-diagram.svg</image:loc><image:caption>The fermium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 30 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Fermium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/fermium-bohr-model-shell-build.avif</image:loc><image:caption>The fermium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 30 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Fermium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/mendelevium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/mendelevium-bohr-model-diagram.svg</image:loc><image:caption>The mendelevium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 31 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Mendelevium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/mendelevium-bohr-model-shell-build.avif</image:loc><image:caption>The mendelevium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 31 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Mendelevium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nobelium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nobelium-bohr-model-diagram.svg</image:loc><image:caption>The nobelium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 8 in shell P and 2 in shell Q).</image:caption><image:title>Nobelium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nobelium-bohr-model-shell-build.avif</image:loc><image:caption>The nobelium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 8 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nobelium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/lawrencium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/lawrencium-bohr-model-diagram.svg</image:loc><image:caption>The lawrencium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 8 in shell P and 3 in shell Q).</image:caption><image:title>Lawrencium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/lawrencium-bohr-model-shell-build.avif</image:loc><image:caption>The lawrencium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 8 in shell P and 3 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Lawrencium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/rutherfordium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/rutherfordium-bohr-model-diagram.svg</image:loc><image:caption>The rutherfordium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 10 in shell P and 2 in shell Q).</image:caption><image:title>Rutherfordium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/rutherfordium-bohr-model-shell-build.avif</image:loc><image:caption>The rutherfordium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 10 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Rutherfordium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/dubnium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/dubnium-bohr-model-diagram.svg</image:loc><image:caption>The dubnium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 11 in shell P and 2 in shell Q).</image:caption><image:title>Dubnium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/dubnium-bohr-model-shell-build.avif</image:loc><image:caption>The dubnium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 11 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Dubnium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/seaborgium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/seaborgium-bohr-model-diagram.svg</image:loc><image:caption>The seaborgium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 12 in shell P and 2 in shell Q).</image:caption><image:title>Seaborgium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/seaborgium-bohr-model-shell-build.avif</image:loc><image:caption>The seaborgium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 12 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Seaborgium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/bohrium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/bohrium-bohr-model-diagram.svg</image:loc><image:caption>The bohrium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 13 in shell P and 2 in shell Q).</image:caption><image:title>Bohrium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/bohrium-bohr-model-shell-build.avif</image:loc><image:caption>The bohrium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 13 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Bohrium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/hassium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/hassium-bohr-model-diagram.svg</image:loc><image:caption>The hassium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 14 in shell P and 2 in shell Q).</image:caption><image:title>Hassium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/hassium-bohr-model-shell-build.avif</image:loc><image:caption>The hassium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 14 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Hassium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/meitnerium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/meitnerium-bohr-model-diagram.svg</image:loc><image:caption>The meitnerium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 15 in shell P and 2 in shell Q).</image:caption><image:title>Meitnerium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/meitnerium-bohr-model-shell-build.avif</image:loc><image:caption>The meitnerium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 15 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Meitnerium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/darmstadtium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/darmstadtium-bohr-model-diagram.svg</image:loc><image:caption>The darmstadtium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 16 in shell P and 2 in shell Q).</image:caption><image:title>Darmstadtium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/darmstadtium-bohr-model-shell-build.avif</image:loc><image:caption>The darmstadtium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 16 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Darmstadtium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/roentgenium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/roentgenium-bohr-model-diagram.svg</image:loc><image:caption>The roentgenium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 17 in shell P and 2 in shell Q).</image:caption><image:title>Roentgenium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/roentgenium-bohr-model-shell-build.avif</image:loc><image:caption>The roentgenium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 17 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Roentgenium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/copernicium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/copernicium-bohr-model-diagram.svg</image:loc><image:caption>The copernicium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 2 in shell Q).</image:caption><image:title>Copernicium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/copernicium-bohr-model-shell-build.avif</image:loc><image:caption>The copernicium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 2 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Copernicium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/nihonium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/nihonium-bohr-model-diagram.svg</image:loc><image:caption>The nihonium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 3 in shell Q).</image:caption><image:title>Nihonium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/nihonium-bohr-model-shell-build.avif</image:loc><image:caption>The nihonium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 3 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Nihonium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/flerovium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/flerovium-bohr-model-diagram.svg</image:loc><image:caption>The flerovium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 4 in shell Q).</image:caption><image:title>Flerovium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/flerovium-bohr-model-shell-build.avif</image:loc><image:caption>The flerovium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 4 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Flerovium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/moscovium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/moscovium-bohr-model-diagram.svg</image:loc><image:caption>The moscovium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 5 in shell Q).</image:caption><image:title>Moscovium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/moscovium-bohr-model-shell-build.avif</image:loc><image:caption>The moscovium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 5 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Moscovium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/livermorium-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/livermorium-bohr-model-diagram.svg</image:loc><image:caption>The livermorium Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 6 in shell Q).</image:caption><image:title>Livermorium Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/livermorium-bohr-model-shell-build.avif</image:loc><image:caption>The livermorium Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 6 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Livermorium Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/tennessine-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/tennessine-bohr-model-diagram.svg</image:loc><image:caption>The tennessine Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 7 in shell Q).</image:caption><image:title>Tennessine Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/tennessine-bohr-model-shell-build.avif</image:loc><image:caption>The tennessine Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 7 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Tennessine Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/oganesson-bohr-model/</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/images/oganesson-bohr-model-diagram.svg</image:loc><image:caption>The oganesson Bohr model drawn flat: each ring is a shell, labelled with its letter, and every dot is an electron (2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 8 in shell Q).</image:caption><image:title>Oganesson Bohr model diagram</image:title><image:license>https://periodictable.page/terms/</image:license></image:image><image:image><image:loc>https://periodictable.page/images/oganesson-bohr-model-shell-build.avif</image:loc><image:caption>The oganesson Bohr model built up in six seconds: the nucleus first, then each shell with its electrons, ending with 2 in shell K, 8 in shell L, 18 in shell M, 32 in shell N, 32 in shell O, 18 in shell P and 8 in shell Q. Protons are red, neutrons yellow and electrons blue.</image:caption><image:title>Oganesson Bohr model, built shell by shell</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
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  <url><loc>https://periodictable.page/periodic-table-faq/how-many-metals-are-on-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/what-is-the-most-unreactive-group-on-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/what-is-the-most-dangerous-element-on-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/who-invented-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/why-is-it-called-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/what-is-the-chemistry-chart-called/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/what-is-67-on-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/how-to-memorize-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-faq/is-water-on-the-periodic-table/</loc><lastmod>2026-11-03</lastmod></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-basic-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-basic-color.webp</image:loc><image:caption>Each tile shows the atomic number and the element symbol. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with atomic number and symbol (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-basic-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-basic-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number and the element symbol. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with atomic number and symbol (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-names-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-names-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol and full name of the element. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with element names (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-names-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-names-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol and full name of the element. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with element names (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-atomic-mass-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-atomic-mass-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and atomic mass in u. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with atomic mass (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-atomic-mass-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-atomic-mass-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and atomic mass in u. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with atomic mass (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electron-configuration-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electron-configuration-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol and the electron configuration in noble-gas shorthand. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with electron configuration (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electron-configuration-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electron-configuration-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol and the electron configuration in noble-gas shorthand. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with electron configuration (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electronegativity-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electronegativity-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and Pauling electronegativity. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with electronegativity (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electronegativity-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electronegativity-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and Pauling electronegativity. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with electronegativity (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-charges-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-charges-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and the common oxidation states, which give the ion charges. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with oxidation states and charges (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-charges-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-charges-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and the common oxidation states, which give the ion charges. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with oxidation states and charges (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-complete-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-complete-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name, atomic mass and electron configuration. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with names, atomic mass and electron configuration (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-complete-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-complete-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name, atomic mass and electron configuration. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with names, atomic mass and electron configuration (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-groups-and-periods.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-groups-and-periods.webp</image:loc><image:caption>Groups 1 to 18 along the top and periods 1 to 7 down the side, with family colors. A good first chart for learning how to read the table.</image:caption><image:title>Periodic Table PDF with Groups and Periods Numbered</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-blank.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-blank.webp</image:loc><image:caption>An empty periodic table with the group and period numbers only, for filling in symbols, names and numbers from memory.</image:caption><image:title>Blank Periodic Table PDF (empty tiles)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-blank-with-atomic-numbers.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-blank-with-atomic-numbers.webp</image:loc><image:caption>Every tile shows its atomic number and nothing else. Write in the symbol and name; the printable answer key is the table with symbols.</image:caption><image:title>Blank Periodic Table PDF with Atomic Numbers</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-blank-with-symbols.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-blank-with-symbols.webp</image:loc><image:caption>Every tile shows its symbol and nothing else. Write in the atomic number, name and atomic mass.</image:caption><image:title>Blank Periodic Table PDF with Symbols</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/long-form-periodic-table-basic-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/long-form-periodic-table-basic-color.webp</image:loc><image:caption>The 32-column long form with the lanthanides and actinides in line with the rest of periods 6 and 7, so no element sits in a detached row.</image:caption><image:title>Long Form Periodic Table PDF with symbols (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/long-form-periodic-table-basic-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/long-form-periodic-table-basic-black-and-white.webp</image:loc><image:caption>The 32-column long form with the lanthanides and actinides in line with the rest of periods 6 and 7, so no element sits in a detached row.</image:caption><image:title>Long Form Periodic Table PDF with symbols (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/long-form-periodic-table-atomic-mass-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/long-form-periodic-table-atomic-mass-color.webp</image:loc><image:caption>The 32-column long form with the lanthanides and actinides in line with the rest of periods 6 and 7, so no element sits in a detached row.</image:caption><image:title>Long Form Periodic Table PDF with symbols and atomic mass (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/long-form-periodic-table-atomic-mass-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/long-form-periodic-table-atomic-mass-black-and-white.webp</image:loc><image:caption>The 32-column long form with the lanthanides and actinides in line with the rest of periods 6 and 7, so no element sits in a detached row.</image:caption><image:title>Long Form Periodic Table PDF with symbols and atomic mass (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-whole-number-mass-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-whole-number-mass-color.webp</image:loc><image:caption>Atomic masses rounded to whole numbers, as in exam data sheets, with chlorine 35.5 and copper 63.5 kept as halves. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with Whole-Number Atomic Mass (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-whole-number-mass-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-whole-number-mass-black-and-white.webp</image:loc><image:caption>Atomic masses rounded to whole numbers, as in exam data sheets, with chlorine 35.5 and copper 63.5 kept as halves. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with Whole-Number Atomic Mass (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/exam-style-periodic-table-whole-number-mass.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/exam-style-periodic-table-whole-number-mass.webp</image:loc><image:caption>A data-sheet layout for GCSE, O-level and A-level revision: a key to the tile, 57–71 and 89–103 placeholders, and the lanthanoids and actinoids set apart below. Atomic masses rounded to whole numbers, as in exam data sheets, with chlorine 35.5 and copper 63.5 kept as halves.</image:caption><image:title>Exam-Style Periodic Table PDF with Whole-Number Atomic Mass (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-one-decimal-mass-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-one-decimal-mass-color.webp</image:loc><image:caption>Atomic masses rounded to one decimal place, as in A-level data sheets. Radioactive elements show the mass number of the longest-lived isotope in brackets. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with Atomic Mass to 1 Decimal Place (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-one-decimal-mass-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-one-decimal-mass-black-and-white.webp</image:loc><image:caption>Atomic masses rounded to one decimal place, as in A-level data sheets. Radioactive elements show the mass number of the longest-lived isotope in brackets. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with Atomic Mass to 1 Decimal Place (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/exam-style-periodic-table-one-decimal-mass.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/exam-style-periodic-table-one-decimal-mass.webp</image:loc><image:caption>A data-sheet layout for GCSE, O-level and A-level revision: a key to the tile, 57–71 and 89–103 placeholders, and the lanthanoids and actinoids set apart below. Atomic masses rounded to one decimal place, as in A-level data sheets. Radioactive elements show the mass number of the longest-lived isotope in brackets.</image:caption><image:title>Exam-Style Periodic Table PDF with Atomic Mass to 1 Decimal Place (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-with-key-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-with-key-color.webp</image:loc><image:caption>A beginner chart with a key that labels the atomic number, symbol, name and atomic mass on a sample tile. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with Key to Reading a Tile (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-group-labels-ia-viiia-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-group-labels-ia-viiia-color.webp</image:loc><image:caption>Groups numbered 1 to 18 with the older American labels IA to VIIIA beside them, as used in many US textbooks. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with Group Labels IA to VIIIA (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electrons-per-shell-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electrons-per-shell-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and how many electrons sit in each shell, for example 2-8-1 for sodium. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with Electrons per Shell (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-with-key-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-with-key-black-and-white.webp</image:loc><image:caption>A beginner chart with a key that labels the atomic number, symbol, name and atomic mass on a sample tile. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with Key to Reading a Tile (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-group-labels-ia-viiia-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-group-labels-ia-viiia-black-and-white.webp</image:loc><image:caption>Groups numbered 1 to 18 with the older American labels IA to VIIIA beside them, as used in many US textbooks. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with Group Labels IA to VIIIA (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electrons-per-shell-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electrons-per-shell-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, name and how many electrons sit in each shell, for example 2-8-1 for sodium. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with Electrons per Shell (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-state-of-matter-symbols.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-state-of-matter-symbols.webp</image:loc><image:caption>Tiles shaded by element family, with the symbol colored by state at room temperature: solid, liquid, gas or unknown.</image:caption><image:title>Periodic Table PDF with State of Matter Symbols</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/portrait-periodic-table-basic-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/portrait-periodic-table-basic-color.webp</image:loc><image:caption>The 18-column table on an upright A4 page, for binders, notebooks and double-sided handouts. Tiles are shaded by element family, with a color key.</image:caption><image:title>Portrait Periodic Table PDF with symbols (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/portrait-periodic-table-basic-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/portrait-periodic-table-basic-black-and-white.webp</image:loc><image:caption>The 18-column table on an upright A4 page, for binders, notebooks and double-sided handouts. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Portrait Periodic Table PDF with symbols (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/portrait-periodic-table-atomic-mass-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/portrait-periodic-table-atomic-mass-color.webp</image:loc><image:caption>The 18-column table on an upright A4 page, for binders, notebooks and double-sided handouts. Tiles are shaded by element family, with a color key.</image:caption><image:title>Portrait Periodic Table PDF with symbols and atomic mass (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/portrait-periodic-table-atomic-mass-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/portrait-periodic-table-atomic-mass-black-and-white.webp</image:loc><image:caption>The 18-column table on an upright A4 page, for binders, notebooks and double-sided handouts. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Portrait Periodic Table PDF with symbols and atomic mass (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-poster-a3-names-and-atomic-mass.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-poster-a3-names-and-atomic-mass.webp</image:loc><image:caption>A3 landscape poster for classroom walls. The file is vector, so it also scales cleanly to A2 and larger at a print shop. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table Poster PDF with names and atomic mass (A3, color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-poster-a3-complete.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-poster-a3-complete.webp</image:loc><image:caption>A3 landscape poster for classroom walls. The file is vector, so it also scales cleanly to A2 and larger at a print shop. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table Poster PDF with names, atomic mass and electron configuration (A3, color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-solids-liquids-gases.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-solids-liquids-gases.webp</image:loc><image:caption>Every element shaded by its state at room temperature: solid, liquid (bromine and mercury) or gas.</image:caption><image:title>Periodic Table PDF: Solids, Liquids and Gases</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-metals-nonmetals-metalloids.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-metals-nonmetals-metalloids.webp</image:loc><image:caption>Metals, metalloids and nonmetals in three colors, with the staircase line that separates them easy to see.</image:caption><image:title>Periodic Table PDF: Metals, Nonmetals and Metalloids</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-s-p-d-f-blocks.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-s-p-d-f-blocks.webp</image:loc><image:caption>The four blocks shaded in four colors, to show how electron subshells shape the layout of the table.</image:caption><image:title>Periodic Table PDF: s, p, d and f Blocks</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-discovery-timeline.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-discovery-timeline.webp</image:loc><image:caption>Elements shaded by when they were discovered, from the ancient metals to the newest superheavy elements.</image:caption><image:title>Periodic Table PDF by Year of Discovery</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-density-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-density-heat-map.webp</image:loc><image:caption>Density in g/cm³ on a logarithmic color scale, so light gases and heavy metals are both readable.</image:caption><image:title>Periodic Table PDF: Density Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-melting-point-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-melting-point-heat-map.webp</image:loc><image:caption>Melting point in kelvin, darker for higher values.</image:caption><image:title>Periodic Table PDF: Melting Point Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-boiling-point-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-boiling-point-heat-map.webp</image:loc><image:caption>Boiling point in kelvin, darker for higher values.</image:caption><image:title>Periodic Table PDF: Boiling Point Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electronegativity-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electronegativity-heat-map.webp</image:loc><image:caption>Pauling electronegativity, darker for elements that attract bonding electrons more strongly.</image:caption><image:title>Periodic Table PDF: Electronegativity Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-atomic-radius-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-atomic-radius-heat-map.webp</image:loc><image:caption>Calculated atomic radius in picometres, darker for larger atoms.</image:caption><image:title>Periodic Table PDF: Atomic Radius Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-ionization-energy-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-ionization-energy-heat-map.webp</image:loc><image:caption>Energy needed to remove the first electron, in kJ/mol, darker for higher values.</image:caption><image:title>Periodic Table PDF: First Ionization Energy Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-electron-affinity-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-electron-affinity-heat-map.webp</image:loc><image:caption>Electron affinity in kJ/mol, darker for elements that gain an electron more readily.</image:caption><image:title>Periodic Table PDF: Electron Affinity Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-thermal-conductivity-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-thermal-conductivity-heat-map.webp</image:loc><image:caption>Thermal conductivity in W/m·K on a logarithmic scale.</image:caption><image:title>Periodic Table PDF: Thermal Conductivity Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-abundance-in-crust-heat-map.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-abundance-in-crust-heat-map.webp</image:loc><image:caption>Abundance in the Earth&#x27;s crust in mg/kg on a logarithmic scale.</image:caption><image:title>Periodic Table PDF: Abundance in the Earth&#x27;s Crust Heat Map</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-atomic-properties-color.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-atomic-properties-color.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, atomic weight, mass number, first ionization energy in eV and melting point in °C, in the order given in the key. Tiles are shaded by element family, with a color key.</image:caption><image:title>Periodic Table PDF with Atomic Properties and Thermal Data (color)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/periodic-table-atomic-properties-black-and-white.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/periodic-table-atomic-properties-black-and-white.webp</image:loc><image:caption>Each tile shows the atomic number, symbol, atomic weight, mass number, first ionization energy in eV and melting point in °C, in the order given in the key. Plain white tiles with black outlines, so it prints sharply on any printer and photocopies cleanly.</image:caption><image:title>Periodic Table PDF with Atomic Properties and Thermal Data (black and white)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/mendeleev-periodic-table-1869.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/mendeleev-periodic-table-1869.webp</image:loc><image:caption>Mendeleev&#x27;s first periodic table of 1869 redrawn as printed, with his original atomic weights, symbols and question-marked gaps.</image:caption><image:title>Mendeleev Periodic Table PDF (1869 Original)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
  <url><loc>https://periodictable.page/periodic-table-pdf/mendeleev-predicted-elements.pdf</loc><lastmod>2026-11-03</lastmod><image:image><image:loc>https://periodictable.page/periodic-table-pdf/thumbs/mendeleev-predicted-elements.webp</image:loc><image:caption>The eight elements Mendeleev&#x27;s table predicted and their modern names, with his predicted properties of eka-aluminium and eka-silicon beside the observed values for gallium and germanium.</image:caption><image:title>Mendeleev&#x27;s Predicted Elements PDF (Eka-Aluminium, Eka-Boron, Eka-Silicon)</image:title><image:license>https://periodictable.page/terms/</image:license></image:image></url>
</urlset>
