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jan 1, 1932 - Chadwick

Description:

Chadwick discovered the neutron which is located in the nucleus. This was a major part in modelling the atom and the different parts. He also believed that there was empty space with a dense nucleus and that there was negitive and postive parts.

Added to timeline:

Science Timeline - Atom History

ByZachary Thurston
21 Oct 2018

Date:

jan 1, 1932
Now
~ 92 years ago
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