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jan 27, 1930 - James Chadwick

Description:

Investigated the nucleus and identified the neutron. Put beryllium in vacuum chamber with polonium. Hydrogen target placed and protons flew out. Conservation of momentum and energy Chadwick found mass as 1.0067 times proton

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ByJacob Arruda
20 Nov 2018
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Date:

jan 27, 1930
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~ 95 years ago

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