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jan 1, 1803 - 1803 John Dalton developed the first modern atomic theory. All matter is composed of indivisible particles called atoms All atoms of a given element are identical; atoms of different elements have different properties

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Democritus to Dalton By Nadezhda D.

ByNadezhda Dominguez
14 Jan 2020
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jan 1, 1803
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~ 223 years ago
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