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13 févr. 1829 - John Dobereiner

Description:

John was a german scientist who was aware of forty elements. He took note that some groups of elements had similar properties and named the groups triads.

Ajouté au bande de temps:

Physical Science

ByThomas
6 févr. 2018
0
0
329

Date:

13 févr. 1829
Maintenaint
~ Il y a 195 ans
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