E Grace Famous Dead Guy

By emily.grace
  • 101

    Thales 624 B.C.

    Thought all things were made of water
  • 101

    Democritus-- 400 B.C

    First person to think of the atom. thought it was a solid sphere.
  • 101

    Aristotle-- 384

    Didn't believe in the Atomic Theory. believed all substances were made of fire, water, earth, and air.

  • Newton

    He agreed with Democritus.

  • Dalton

    Atomic theory. First to have experimental evidence.

  • Henri Becquerel

    discovered reactivity, couldn't explain it.

  • Joseph John Thompson

    discovered the electron

  • Ernest Rutherford

    discovered the nucleus

  • Millikan

    Found the charge of an electron

  • Niels Bohr

    thought electrons orbited around the nucleus

  • Erwin Schrodinger

    atomic model was the quantum mechanical model.

  • James Chadwick

    Proved the exsistence of neutrons.