ATOMS TIMELINE

By Joradn11
  • 400

    Democritus

    HE was the first to guess an atom and did mot conduct and expirement instead he had the first Atomic theory. DEWITT, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015.
  • Period: 400 to

    ATOMS TIMELINE

  • 500

    By Trey and James

  • Dalton

    Dalton
    Dalton's experiments on gases led to his discovery that the total pressure of a mixture of gases amounted to the sum of the partial pressures that each individual gas exerted while occupying the same space. "John Dalton." The History of the Atom. DEWITT, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015.

  • thomson

    thomson
    In 1897 the British physicist Joseph John (J. J.) Thomson (1856–1940) discovered the electron in a series of experiments designed to study the nature of electric discharge in a high-vacuum cathode-ray tube. DEWITT, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015. "How Did J.J. Thomson Change Dalton's Atomic Theory? | Socratic." Socratic.org. N.p., n.d. Web. 25 Feb. 2015.

  • Rutherford's Atom

    Rutherford's Atom
    He discovered that the atom isn't plum pudding like it was previously proposed by Thomson and that every now and then, a particle bounces back as though it had something solid.He used experiments to come up with his conclusion. "Rutherford and Bohr Describe Atomic Structure." PBS. PBS, 1998. Web. 23 Feb. 2015. http://www.pbs.org/wgbh/aso/databank/entries/dp13at.html.

  • Bohr's Atom

    Bohr's Atom
    SAID: A nucleus mad up of protons lies in the center while surrounded by layers of electrons that have a different number within each of them
    Discovered using experiments discovered-the-structure-of-that-and-he-talks-
    Vazirani, Umesh. "Genius Annotation of." Genius. N.p., 2015. Web. 25 Feb. 2015. <http://genius.com/1997578/Umesh-vazirani-introduction/So-heres-a-quote-from-niels-bohr-who-is-the-famous-physicist-who-discovered-the-structure-of-that-and-he-talks-about-how-quantum-mechanics-is-a-v

  • Heisenberg and Schrodinger's Atom

    Heisenberg and Schrodinger's Atom
    He found that a positive nuclues is surrounding by energy waves by the use of mathmatical equations. "Erwin Schrodinger Atomic Theory Model." Good Pix Galleries. N.p., n.d. Web. 25 Feb. 2015. http://pixgood.com/erwin-schrodinger-atomic-theory-model.html. "Erwin Schrodinger/ Werner Heisenberg." The Atom. N.p., n.d. Web. 25 Feb. 2015. https://sites.google.com/site/theatombydancolella/home/start-of-the-atom/erwin-schrodinger-heisenberg.