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30 out 1869 ano - Dmitri Mendeleev: Arranged elements into 7 groups with similar properties. He discovered that the properties of elements "were periodic functions of the their atomic weights". This became known as the Periodic Law.

Adicionado na linha do tempo:

Timeline of Atomic Structure

BySamar Hussain
7 dez 2017

Data:

30 out 1869 ano
Agora
~ 154 years ago
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