James Chadwick (1 jan 1891 ano – 1 jan 1974 ano)

Descrição:

James Chadwick (1891-1974) was an English physicist that discovered the presence of the neutron in the nucleus of an atom through his experimentation (1932) in which he bombarded beryllium atoms with alpha particles, a subsequent result of which was an unknown radiation, interpreted by Chadwick as a neutrally-charged particle the same size as a proton, which became known as a neutron.

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