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Atoms are now said to be a cloud of electrons surrounded by a nucleus. (jan 1, 2015 – may 31, 2018)
Added to timeline:
Theories of Matter Timeline
By
Julia Moscaluk
4 Nov 2018
0
0
305
Date:
jan 1, 2015
may 31, 2018
~ 3 years and 4 months
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