atomic theory

By leebeal
  • democritus
    400

    democritus

    First person to thorize about the indivisable particals called atoms
  • john dalton

    john dalton

    first useful atomic theory 0f matter around 1803
  • JJ Thomson

    JJ Thomson

    discovers electron positive charge of atom containing a number of protrons
  • Ernest Rutherford

    Ernest Rutherford

    discovers the nucleus with the gold foil exp. and the alpha and beta particles

  • Neils Bohr

    quantum theory of matter successiveoribital shell of electron

  • Chadwick

    discovers the neutron

  • Schrodinger

    electron cloud model as the probale location of moving particals
  • Cockroft and Walton

    Cockroft and Walton

    split the atom

  • Frederic and Irene Joliot-Curie

    there exp. lead to chadwicks discovery of the neutron
  • build the atomic bomb

    build the atomic bomb

    bomb was droped on japan to end WW2