atomic theory

By leebeal
  • 400

    democritus

    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