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9 h 44 min, 16 oct. 2006 ans - there are 117 different elements. The most recent elements discovered are meitnerium, darmstadtium, and ununquadium.

Ajouté au bande de temps:

History of the Periodic Table

Bylily heavner
3 oct. 2017

Date:

9 h 44 min, 16 oct. 2006 ans
Maintenaint
~ Il y a 17 ans
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