Atomic theory of an atom

Описание к видео Atomic theory of an atom

In 1803, an English scientist John Dalton (1766-1844) stated his theory in a lecture to the Royal Institution. The theory proposed a number of basic ideas:

1) All matter is made of atoms. Atoms are indivisible and indestructible.

2) All atoms of a given element are identical in mass and properties

3) Compounds are formed by a combination of two or more different kinds of atoms.

4) A chemical reaction is a rearrangement of atoms.

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