history of the atomic model

  • 400


    Domocritus suggested that all matter was formed of different types of tiny discrete particles and that the properties of these particles also determined the properties of matter.
  • Period: 400 to

    history of the atomic model

  • Sep 1, 600


    Provided the method of gathering scientific facts.
  • John Dalton

    He proposed atoic theory with circular solid mass in motion.
  • J. J Thomson

    He discribed atoms as a ball of positive charges containing a number of electrons.
  • Hantaro Nagoako

    He created a planetary odel of the atom but was incorrect. His model did discover the atoms rings.
  • Ernest Marsden

    He discovered the nucleus.
  • Aston

    Discovered the existence of isotopes through the use of a mass spectrograph.
  • Nelis Bohr

    He Said that the atom is succesive or bital shells of electrons. He also came up with the Bohr Planetary Model.
  • Erwin Schrodinger

    He proposed the Electron Cloud Theory. He identified the electron cloud as the probable location of moving particles.
  • Ernest Rutherford

    He determined that the nucleas of an atom is very dense and has a ositive charge.
  • Louis de Broglie

    He determand that the atoms move in a wave like motion.
  • James Chadwick

    He proved the existence of neutron. He discovered a particle within the nucleus that has a mass simular to a protron.
  • Enrico Fermi

    He conducted the fist chain reaction releasing energy from the atoms nucleus.