Atom Timeline

  • Democritus
    460 BCE

    Democritus

    Ancent Greek Philosopher. Formation of atomic theory in 460 BC
  • John Dalton

    John Dalton

    English Chemist. Introduced atomic theory into chemistry in 1803
  • Eugen Goldstien

    Eugen Goldstien

    German Physicist. In 1886, found positive rays, positively charges ions
  • Dmitri Mendeleev

    Dmitri Mendeleev

    Russian Chemist. Formulated the Periodic Table on Febuary 17, 1869
  • JJ Thomson

    JJ Thomson

    British Physicist, discovery of electron. Nobel Prize 1906. Idea electricity transfers by tiny particles. Made discovery in 1897.
  • Max Planck

    Max Planck

    Won nobel prize in 1918, discovered the quantrim of action in 1900
  • Robert Millikan

    Robert Millikan

    American Physicist. Nobel Prize in 1923. Discovered elementary charge in 1909
  • Ernest Rutherford

    Ernest Rutherford

    Father of nuclear physics. In 1911, found atomic nucleus. Won Nobel Prize in 1908
  • Niels Bohr

    Niels Bohr

    Danish physicist. Nobel Peace Prize winner in 1922. Made contrabutions to understand the atomic structre and quantum theory in 1913
  • Werner Heisenburg

    Werner Heisenburg

    German Theorelogical Physicist. Discovered uncertanly principle in 1925. Nobel Peace in 1932
  • Erwin Schrödinger

    Erwin Schrödinger

    Nobel Peace Prize winner in 1933. Austrian Irish Physicist. Showed quantization of hydrogen atoms in 1926
  • James Chadwick

    James Chadwick

    British Physicist, 1935 won the Nobel Prize. Discovered the Nutron in 1932