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20 feb 1805 año - Dalton - 1805

Descripción:

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.

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The History of the Atom

ByChinmay
10 oct 2017
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fecha:

20 feb 1805 año
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~ 220 years ago
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