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400
Democritus
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400
The Greeks
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Period: 400 to
Atomic Timeline
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Antoine Lavoisier
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John Dalton
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Henri Becquerel
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W.K. Roentgen
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J.J Thomson
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Max Planck
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Marie Curie
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Ernest Rutherford
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Hans Geiger
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Neils Bohr
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Robert Millikan
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Erwin Schrodinger
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Werner Heisenberg
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James Chadwick
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Enrico Fermi