Dead People

Timeline created by Kyle Wood
  • 101

    Aristotle-384

    Didint believe in the atomic theory. Believed all substances were made of fire, water ,earth, and air
  • 101

    Democritus-400 BC

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

    Thales 624 BC

    thought all things were made of waster
  • Dalton

    Atomic theory first to have experimental proof
  • henri becquerel

    discovered reactivity, couldnt explain it
  • Millikan

    found the charge of an electron
  • Niels Bohr

    thought electrons orbited around the nucleus
  • Erwin Schrodinger

    atomic model was ythe quantum mechanical model