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atomic theory

TermDefinition
Democritus Greek philosopher named atoms
Thompson, Joseph 1904 he discovered electrons his model is called "plum pudding"
Rutherford, Ernest 1911 he discovered the nucleus gold-foil experiment
Bohr, Neils 1913 electrons travel in orbits around the nucleus. "bookshelf model"
electron cloud current model of atomic structure electrons are not in orbits but found frequently in certain areas.
Created by: 4640
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