atomic theory timeline

  • 400

    democritius

    founder of atom
  • Period: 400 to

    atomic theory timeline

  • Dalton

    thought atoms cant be made or destroyed dalton atomic theory
  • Thomson

    discovered electron
    plum pudding planetery model
  • milkman

    measured the electron oil drop experiment
  • Moesly

    xrayed an atom
  • Bohr

    found the shells of electrons bohr planetary model
  • Rutherford

    discovered the nucleas gold foil experiment
  • Schrodinger

    found the electron cloud had moving particles
  • Chadwick

    proved the existance of the neutron
  • Dimitri Mendeleev

    made the perodic table