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jan 1, 1829 - Tríades de Döbereiner

Description:

O químico alemão Johann W. Döbereiner sugeriu uma organização baseada em tríades, ou seja, os elementos eram agrupados em trios conforme as suas propriedades semelhantes.

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By irina
23 Mar 2021
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Date:

jan 1, 1829
Now
~ 197 years ago

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