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1 janv. 1937 - Technetium is the first articficially produced element.

Description:

By Pierre and Segre in Italy

Ajouté au bande de temps:

TC99m

ByCaitlin
24 oct. 2017
0
0
625

Date:

1 janv. 1937
Maintenaint
~ Il y a 88 ans
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