Atomic Model Timeline

By HD5D5
  • 465

    Democritus

    BC****
    Democritus made the first intial discovery of the atom

  • John Dalton

    John Dalton purposed the atomic theory.

  • JJ Thomson

    JJ Thomson figured out that canal rays and found that they have to deal with a positive charge. He also determined the charge to mass ratio of an electron.

  • Albert Einstein

    Albert Einstein came up with the equation e=mc^2.

  • Robert Milikan

    Robert Milikan did an experiment with oil that determined the charge and the mass of an electron.

  • Ernest Rutherford

    Ernest Rutherford use atom particles as bulletes. He also said the nucleus was small and positive.

  • Niels Bohr

    Niels Bohr devolped the atomic structure. He made an orbital structure with balls representing the electrons.

  • Louis de Broglie

    Louis de Broglie supported Einstein by saying electrons were similar to both particles and waves.

  • Wolfgang Pauli

    Wolfgang Pauli came up with quatum mechanics.

  • Werner Heisenburg

    Described atoms by a formula. Came up with the Principle of Indeterminacy.

  • Erwin Schrodinger

    Erwin Schrodinger said that electrons were clouds with wave mechanics.

  • James Chadwick

    James Chadwick did experiments that led to the discovery of the neutron.

  • Picture Sources

    Wikipedia. Wikipedia, 14 Jan. 2012. Web. 25 Sept. 2014.
    Schmelling, Brian. Quizlet. Quizlet, 19 Aug. 2011. Web. 25 Sept. 2014.
    People, The. "Hudson Valley Geologists." December 2011!!!!! Hudson Valley Geologists, 4 Dec. 2011. Web. 25 Sept. 2014.
    "Fall.2010.MMA.Lester.atomictimeline." Reich-chemistry -. Chemistry Foundation, 15 Mar. 2010. Web. 25 Sept. 2014.
    "Rutherford Model of the Atom." Rutherford Model of the Atom. 6 Feb. 2014. Web. 25 Sept. 2014.
    "Ernest Rutherford." Atomic Theory 101. 16 F

  • Sources

    Buescher, Lee. "Atomic Structure Timeline." Atomic Structure Timeline. Lee Buescher's Home Page, 17 Aug. 2013. Web. 23 Sept. 2014.atomictimeline.net/index.php
    Marvkowski, Deborah. "History of Atoms." History of Atoms. Deborah Marvkowski, 4 Feb. 2012. Web. 23 Sept. 2014. http://www.nobeliefs.com/atom.htm
    \Quest, Think. "ThinkQuest." ThinkQuest. Oracle Foundation, 29 Oct. 203. Web. 23 Sept. 2014.Quest, Think. "ThinkQuest." ThinkQuest. Oracle Foundation, 29 Oct. 203. Web. 23 Sept. 2014 https://g

  • Picture of the origin of atomic theory

    Picture of Origin of Atomic Theory

  • Picture of the Solid Sphere Model

    Picture of the Solid Sphere Model

  • Picture of the Modern Model

    Picture of the Modern Model

  • Picture of the Planetary Model

    Picture of the Planetary Model

  • Picture of a planatary model

    Picture of a planatary model

  • Picture of the Plum Pudding Model

    Picture of the Plum Pudding Model

  • Picture of the Nuclear Model

    Picture of the Nuclear Model