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5 dez 1869 ano - Dimitri Mendeleev

Descrição:

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:

Nedo Matic Atomic timeline

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8 dez 2017
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Data:

5 dez 1869 ano
Agora
~ 155 years ago

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