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23 jun 1774 ano - Dalton's atomic theory.

Descrição:

All matter is made of atoms. Atoms are indivisible and indestructible.
All atoms of a given element are identical in mass and properties
Compounds are formed by a combination of two or more different kinds of atoms.

Adicionado na linha do tempo:

Data:

23 jun 1774 ano
Agora
~ 251 years ago