Anatom

Beau/Famous Dead Guy Timeline

By beau.ayres
  • 101

    Thales - 600 BC

    • believed everything was made of water
  • 101

    Democritus - 460 BC

    • first man to believe the atom was made of a circle, thought of the atom
  • 101

    Aristotle - 400 BC

    • believed that everything was made of Earth, water, air, and fire

  • Sir Isaac Newton - 1670

    • discovered gravity, laws of motion, and light spectrum

  • John Dalton - 1807

    • stated matter is atoms, indivisible, and indestructable. All elements are identical atoms and different elements are different

  • Becquerel - 1896

    • discovered radioactivity

  • JJ Thompson - 1897

    • discovered electron and did cathode ray experiment

  • Robert Millikan - 1909

    • oil drop experiment and determined the charge and the mass of the electron and charge

  • Rutherford - 1911

    • discovered nucleus and proton with gold foil experiment

  • Niels Bohr - 1913

    • discovered how electrons travel around nucleus

  • Francis Aston - 1919

    • discovered mass spectograph and discovered isotopes

  • Erwin Schrodinger - 1926

    • created the Schrodinger model and had the electron clouds

  • James Chadwick - 1932

    • created plum pudding model and proved that neutrons exist