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21 März 1922 Jahr - Neils Bohr

Beschreibung:

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.

Zugefügt zum Band der Zeit:

27 Sep 2018
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Datum:

21 März 1922 Jahr
Jetzt
~ 103 years ago