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460
Democritus- discovery of atoms
BC -
Period: 460 to
Atomic Theory
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Antoine Lavoisier- Law Of Conservation of Mass
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Dalton's Atomic Theory
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Dmitri Mendeleev- First Periodic Table
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Robery A. Millikan-electronic charge
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Ernest Rutherford- Rutherford Model/ Gold Foil Experiment
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J.J. Thomson- Cathode Ray Tube/ Plum Pudding Atomic Model
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Henry Moseley- X-Ray Spectra
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Niels Bohr- Bohr Planetary Model
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Erwin Schrodinger- Quantum Mechanical Model/ Electron Cloud Model
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James Chadwick-Existence of Neutrons
