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31 dic 1932 anni - Chadwick

Descrizione:

The nucleus of an atom contains neutrons, electrically neutral particles with a mass similar to that of a proton

Aggiunto al nastro di tempo:

History of the Atom

ByMonica Orlandi

25 nov 2017

0

0

520

Data:

31 dic 1932 anni

Adesso

~ 92 years ago

Immagini:

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