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15 abr 1932 ano - James Chadwick - Discovery of Neutron (1932)

Descrição:

Chadwick found an unknown radiation when experimenting with beryllium atoms and alpha particles which was made up of neutral particles. These particles are called electrons and have approximately the same mass as protons.

Adicionado na linha do tempo:

Data:

15 abr 1932 ano
Agora
~ 93 years ago