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20 fev 1805 ano - Dalton - 1805

Descrição:

Dalton concluded that elements are made of extremely small particles called atoms. Atoms of a given element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties. Atoms cannot be subdivided, created, or destroyed.

Adicionado na linha do tempo:

10 out 2017
0
0
453

Data:

20 fev 1805 ano
Agora
~ 220 years ago