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12 apr 1932 anni - James Chadwick discovered neutrons, particles whose mass was close to that of a proton

Descrizione:

Neutrons are particles with a neutral charge. They and protons occupy the nucleus.

Aggiunto al nastro di tempo:

15 mag 2018
0
0
313

Data:

12 apr 1932 anni
Adesso
~ 93 years ago

Immagini: