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jan 1, 1932 - James Chadwick

Description:

Discovered the nutron when he attacked beryllium atoms with alpha particles. The result lead Chadwick to beleive the particles had a neutral electrical charge and the approximate mass of a proton.

Added to timeline:

Science

ByJayath Gunawardena
28 Jul 2018
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443

Date:

jan 1, 1932
Now
~ 94 years ago

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