Evolution of Atomic theory

Timeline created by w0805562
  • Dmitri Mendeleev

    Dmitri Mendeleev
    arranged periodic table according to atomic mass
    Put elements together in a pattern
  • Period: to

    Atomic Theory

  • JJ Thompson 1856-1940

    JJ Thompson 1856-1940
    Discovered electrons
    Plum pudding model
    Showed how there are smaller subatomic particles
  • Marie Curie 1867-1934

    Marie Curie 1867-1934
    Discovered two radioactive elements
    received peace prize
    Stated radation linked to atom structure
  • Thomas Rutherford 1871-1937

    Thomas Rutherford 1871-1937
    Discovered nucleus and protons
    Discovered nuetron
    Gold foil experiment
    Showed what an atom looks like
  • Mosley

    Mosley
    Development of Moseley's law in X-ray spectra.
    Moseley's Law justified many concepts in chemistry by sorting the chemical elements of the periodic table of the elements in a quite logical order based on their physics.
  • Neils Bohr 1885-1962

    Neils Bohr 1885-1962
    Develpoed orbital model
  • Erwin Schrodinger 1887-1961

    Erwin Schrodinger 1887-1961
    Quantum theory
    Path of electrons random
  • Werner Heisnberg 1901-1976

    Werner Heisnberg 1901-1976
    Developed uncertainty principle
    Showed how you cannot find an electron AND know how fast it is going at the same time
  • James Chadwick 1891-1974

    James Chadwick 1891-1974
    Worked on Mahatten project
    Discovered nucleus
    Showed what an atom looks like
  • Glenn Seaborg

    Glenn Seaborg
    Identified actinides and lanthanides
    Pulled out these series and change how the periodic tale is veiwed
  • Peter Armbruster 1931-

    Peter Armbruster 1931-
    Synthesised hassium, meitnerium, and darmstadium
  • Rudolph Marcus 1923-

    Rudolph Marcus 1923-
    Electron Transfer Theory
    Won a nobel prize for his theory in 1992
  • Eric Cornell 1961-

    Eric Cornell 1961-
    Produced the first bose-einstein condensate with the help of Carl Wieman
    Earned the nobel peace prize
  • Carl Wieman

    Carl Wieman
    Created the first bose-einstein condensate
  • A. David Buckingham

    A. David Buckingham
    He was awarded the first Ahmed Zewail Prize in Molecular Sciences for pioneering contributions to the molecular sciences