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20 fev 1896 ano - Henri Becquerel: While studying the effect of x-rays on photographic film, he discovered some chemicals spontaneously decompose and give off very pentrating rays.

Adicionado na linha do tempo:

Timeline of Atomic Structure

BySamar Hussain
7 dez 2017

Data:

20 fev 1896 ano
Agora
~ 128 years ago
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