Difference between revisions 495467990 and 495473034 on enwiki

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Template:Compact periodic table discovery
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! colspan="32" | {{tnavbar-collapsible|{{pad}}[[Timeline of chemical elements discoveries]]|Timeline of Element Discovery}}
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| width="3.125%" style="background-color:#dddddd"|[[Hydrogen|H]]
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| width="3.125%" style="background-color:#FBCB83"|[[Helium|He]]
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(contracted; show full)
* <span style="background-color:#6CACDE;">1950-1999</span> (+16 elements):  "post atomic bomb" issues for atomic numbers 98 and above (colliders, bombardment techniques).
* <span style="background-color:#FC86F6;">2000-present</span> (+5 elements): recent synthesis.
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