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8 mar 1932 año - Sir James Chadwick

Descripción:

In 1932, James Chadwick bombarded beryllium atoms with alpha particles. An unknown radiation was produced. Chadwick interpreted this radiation as being composed of particles with a neutral electrical charge and the approximate mass of a proton. This particle became known as the neutron.

Añadido al timeline:

Atomic Theory Timeline

ByRachel
11 oct 2017

fecha:

8 mar 1932 año
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~ 92 years ago
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