sep 1, 1932 - In 1932, James Chadwick discovered the sub atomic particle known as the neutron.
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Chadwick created a new sub atomic particles by bombarding another element with alpha particles. Chadwick interperted this radiation as being composed of particles with a neutral electrical charge and the same mass of a proton. This sub atomic particle was named; "Neutron."
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Atomic Theory Timeline
This is scientists that came up with some of the 'Atomic The...
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