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21 dez 1897 ano - J.J Thompson

Descrição:

Studied "canal rays" and found they were associated with the proton H +

J.J. Thomson determined the charge to mass ratio of electrons.

Adicionado na linha do tempo:

Nedo Matic Atomic timeline

8 dez 2017

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Data:

21 dez 1897 ano

Agora

~ 127 years ago

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