1 янв 1932 г. - James Chadwick
Описание:
Shot beryllium with charged alpha particles. This produced an unknown radiation. Chadwick interpreted this as neutral charge with the same average mass of proton. This is the discovery of the neutron.Добавлено на ленту времени:
Дата:
1 янв 1932 г.
Сейчас
~ 92 г назад
