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23 feb 1922 anni - -Niels Bohr 1922 proposed an atomic structure theory that stated the outer orbit of an atom could hold more electrons than the inner orbit.

Aggiunto al nastro di tempo:

atom

Byardenkk
24 ott 2017

Data:

23 feb 1922 anni
Adesso
~ 102 years ago

Immagini:

Geo-marchi:

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