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1 jul 1932 año - Chadwick

Descripción:

He noticed that the atomic # (= the # of protons) was less than the mass,which meant something else in the atom added mass, but no charge. He proposed that this extra mass were Rutherford's neutrons.

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Atomic Theory

ByAvis
26 oct 2017
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1 jul 1932 año
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~ 93 years ago

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