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Physical Science Atoms

  • 470 BCE

    Aristotle

    Aristotle
    He didn't believe Democritus's theory so he added that the substances were Fire, Water, Earth, Air.
  • 465 BCE

    Democritus

    Democritus
    The first to make a formula for the Atomic theory.
  • Dalton

    Dalton
    Added everything is made of Atoms.
  • Thompson

    Thompson
    He added that there were positive and negative charges.
  • Rutherford

    Rutherford
    He added the gold foil experiment.
  • Bohr

    Bohr
    Made a the model of it