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1 janv. 1898 - William Ramsey helped to establish the “zero” group (for “zero valency”) and predicted the future discovery of the element neon.

Ajouté au bande de temps:

History of the Atom

ByMarina Ishak
7 févr. 2020

Date:

1 janv. 1898
Maintenaint
~ Il y a 126 ans
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