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8 terms

McAuley Chemistry Chapter 4

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Democritus
Person who proposed the existance of an atom
John Dalton
Began modern day process regarding atoms around 1800
J. J Thomson
Discovered the electron
Robert A. Millikan
Determined the mass and charge of electrons
Eugen Goldstien
Discovered the proton
Rutherford
Preformed gold foil experiement
James Chadwick
Discovered the neutron
Nucleus
small dense positve charged in the middle of an atom.