The History of Atoms

By Jess222
  • Period: to

    The History of Atom

  • John Dalton

    John Dalton
    He proposed that elements consisted of atoms that were identical and had the same mass and that compounds were atoms from different elements combined together.
  • Dmitri Mendeleev

    Dmitri Mendeleev
    He created the periodic table.
  • J.J Thomson

    J.J Thomson
    He deermined the charge to mass ratio of electrons.
  • Ernest Rutherford

    Ernest Rutherford
    He discovered alpha, beta and gamma rays in radiation.
  • Niels Bohr

    Niels Bohr
    He proposed an atomic structure theory that started the outer orbit of an atom could hold more electrons than the inner orbit.