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21 mars 1922 - Neils Bohr

Description:

He was the first to discover that electrons travel in separate orbits around the nucleus. He also discovered that the number of electrons in the outer orbit determines the properties of an element.

Ajouté au bande de temps:

27 sept. 2018
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Date:

21 mars 1922
Maintenaint
~ Il y a 103 ans