Definition of Dalton, John in English:

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Dalton, John

Pronunciation: /ˈdɔːlt(ə)n/
(1766–1844), English chemist, father of modern atomic theory. He defined an atom as the smallest part of a substance that could participate in a chemical reaction and argued that elements are composed of atoms. He stated that elements combine in definite proportion and produced the first table of comparative atomic weights.

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