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14 h 23 min, 1 janv. 1886 ans - All three missing elements are discovered (Scandium, Gallium, Germanium)

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Periodic Table Timeline

ByKimira B
14 déc. 2017

Date:

14 h 23 min, 1 janv. 1886 ans
Maintenaint
~ Il y a 138 ans
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