History of the Atom Timeline by Easton, Caleb, and Kade

  • 111

    Democritus (400 BC)

    Democritus (400 BC)
    All things are made up of atoms. If you keep breaking something down you will eventually get to the atom.
    "Democritus." The-History-of-the-Atom -. N.p., n.d. Web. 26 Feb. 2014.
    "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27 Feb. 2014.
  • 111

    Aristotle 430 BC

    thought all elements were made of Earth, fire, and wind. "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27 Feb. 2014.
  • Dalton

    Dalton
    discovered that elements consist of tiny particles called atoms.
    used quantitative mesurements
    called Daltons Model Glogster Home Page." Glogster. N.p., n.d. Web. 27 Feb. 2014
    "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27 Feb. 2014.
  • Thomson

    Thomson
    not indevisable and made of electrons
    used experiments
    called the plum pudding model
    "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27
    Feb. 2014. "Atomic Structure." Atomic Structure. N.p., n.d. Web. 26 Feb. 2014.
  • Rutherford

    Rutherford
    Discovered atoms have a nucleus and is postively cahrged in middle
    Used experiments to discover this
    Called the "Nuclear Model" or "Rutherford Model"
    N.p., n.d. Web
    "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27 Feb. 2014.
  • Bohr

    Bohr
    discovered electrons spin around nucleus in an orbit
    used experiments to find this
    Called "Bohr Model"
    "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27 Feb. 2014.
  • Heisenburg and Schrodinger

    Heisenburg and Schrodinger
    electrons base around the atoms like flies 2 particle in nucleus
    used experiments to discover this
    called the "Qauntum Mechanical Model"
    "GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment." GaggleTube Video - Discovery of the Electron: Cathode Ray Tube Experiment. N.p., n.d. Web. 27 Feb.
    2014. The Cloud Model." The Cloud Model. N.p., n.d. Web. 26 Feb. 2014.