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Thomson: The discovery and identification of the electron.
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Bohr: He found out that electrons orbit around the nucleus. Also that each electron has a certain amount of energy
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Dalton: Daltons atomic theory proposed taht all matter was composed of atoms, indivisble and indestructible buliding blocks.
Daltons atomic theory proposed taht all matter was composed of atoms, indivisble and indestructible buliding blocks. -
Robert Millikan: He measured of the elementary electronic charge
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Rutherford: He found out that atoms are mostly made up of space. Some particles where deflected by the gold foil. He concluded that the atom had a small positively charged dense center. He called the nucleus
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Werner Heisenberg: Creation of quantum mechanics. (Which is the branch of mechanics that deals with the mathematical description)
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James Chadwick: Discovery of the neutron.
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Hantaro Nagaoka; He thought that electrons couldn't be located in the positively charged atom