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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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20 fev 1932 ano - james chadwick

Descrição:

discovered the neutron

Adicionado na linha do tempo:

the atom

Bykfjjhdskjfhk
30 out 2017
0
0
474

Data:

20 fev 1932 ano
Agora
~ 93 years ago
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