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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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14 maio 1903 ano - Marie and Pierre Curie

Descrição:

They discovered two new spontaneously radiating elements, which they named polonium and radium. A third element, actinium, was discovered by their colleague Andre Debierne.

Adicionado na linha do tempo:

27 set 2018
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0
414

Data:

14 maio 1903 ano
Agora
~ 122 years ago