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8 март 1932 г. - Sir James Chadwick

Описание:

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.

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8 март 1932 г.
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~ 93 г назад