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jan 1, 1920 - James Chadwick

Description:

He discovered the neurons in the nucleus of an atom.
He knew that most of the mass of the atom was located in a nucleus at its center, and that this central core contained protons.

Added to timeline:

Chemistry

BySama Ozery
7 Oct 2018
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Date:

jan 1, 1920
Now
~ 105 years ago
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