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Democritus
Discovered the atom. -
John Dalton
Dalton's Atomic Theory was discovered while working with electrons. -
J. J. Tompson-Discovery of the Electron
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The particle that J.J.Thomson discovered in 1897, the electron, is a constituent of all the matter we are surrounded by. All atoms are made of a nucleus and electrons. -
Rutherford
Gold Foil experiment was created. -
Bohr
Bohr model was created