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20 ago 1895 ano - Lord Rayleigh reported the discovery of a new gaseous element named argon which proved to be chemically inert.
Adicionado na linha do tempo:
Brenna Fleming: timeline
By
Brenna Fleming
8 dez 2017
0
0
279
Data:
20 ago 1895 ano
Agora
~ 128 years ago
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