Atomic Theory

By PeddieFabinaForever4
  • 400

    Deocritius

    Deocritius
    5th Century, Democritius stated that Atoms are present in atmosphere in no specific size.

  • Dalton

    Dalton
    Dalton stated that "Atoms cannot be divided into small pieces and can't be destroyed."

  • Thomson

    Thomson
    Thomson said that Atoms can be divided to smaller pieces proving Dalton's theory wrong. He called it Plum Pudding

  • Crookes

    Crookes
    Built the Crookes Tube that detected raoiactive emmisions of elements.

  • Becquerel

    Becquerel
    Discovered X rays and radioactivity thus helping scientists perfect atomic model.

  • Rutherford

    Rutherford
    Discovered the Atomic Nucleus, while attempting to examine the structure of the atom with the Geiger-Marsden Effect

  • Bohr

    Bohr
    Discovered how electrons have stable orbits around nucleus, while modifying the Rutherford Model.

  • Chadwick

    Chadwick
    Chadwick discovered the Neutron.

  • Current Model

    Current Model
    The current model of the atom is accepted is by Niels Bohr