1 июл 1932 г. - Chadwick
Описание:
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.Добавлено на ленту времени:
Дата:
1 июл 1932 г.
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~ 93 г назад