10 nov 1932 ano - Chadwick

Descrição:

Chadwick discovered what are now known as neutrons, particles with a neutral charge that join with protons to form the nucleus.

http://atomictheoryfinal.weebly.com/uploads/2/7/0/5/27055527/6923600_orig.jpg

Adicionado na linha do tempo:

29 set 2017

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