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9 jan 1860 ano - 3) Scientist met in one of the first international chemistry conferences and decided hydrogen to be given the weight of one and all other elements would be compared to it

Adicionado na linha do tempo:

Kashif,Aaron,Felix,Nestor

ByKashif Naseer
25 out 2017

Data:

9 jan 1860 ano
Agora
~ 164 years ago
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