1 янв 1932 г. - James Chadwick discovers the Neutron
Описание:
James Chadwick's discovers the Neutron.
Chadwick discovered the Neutron through a complicated experiment, to which he shot an alpha ray through Beryllium which would emit the Neutron out of it and into a gas chamber. Once these neutrons landed in the gas, the mass would be equal to protons.
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