History of the Atom Timeline by Mckenzie and Logan

By logan guilbeau
  • 400

    Democritus (400BC)

    Democritus (400BC)
    He stated all matter is made up of atoms. He also stated atoms are eternal and invisible and so small that they can't be divided, and they can entirely fill up the space they're in. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2014.
  • 400

    Aristole (400BC)

    Aristole (400BC)
    He based his theory about matter on the four elements of earth, fire, water, and air. He believed that matter could be divided forvever. He had no evidence, but his theory was accepted for about the next 2000 years. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2014.

  • Dalton

    Dalton
    Dalton formed the atomic theory, (all matter is composed of tiny, indivisible particles, that are alike and have the same atomic weight). He did experiments with different chemicals and discovered that matter consists of "lumpy particles (atoms)." "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2014.

  • Thompson

    Thompson
    He discovered electrons. He said atoms have a large body with a positive charge with negative parts spread throughout. He use experiments with cathode ray tubes to show his discovery. His model was called "Plum Pudding." "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2014.

  • Rutherford

    Rutherford
    Rutherford discovered the atomic nucleus. He identified these particles as discrete positive charges of matter, named them protons, and found that a proton's mass was 1,836 times greater than the electron mass. To discover this he used alpha particles and the Gold Foil Experiment. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2014.

  • Bohr

    Bohr
    He stated electrons moved around the nucleus in successfully large orbits. He found this out by using mathmatic equations and adding on to Rutherford's statement. In 1913, he passed onto a study of the basics of Rutherford's discovery of the atomic nucleus. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2014.

  • Heisenberg and Schrodlinger

    Heisenberg and Schrodlinger
    Schrodinger introduced the Schodinger Equation- a wave equation the describes the form of the probability waves that govern the motion of small particles and how these waves are altered by external infleunces. Heisenberg calculated the behavior of electrons and suatomic particles that also make up an atom. The Uncertainty Principle. They both built on the thoughts of Bohr.
    "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 12 Mar. 2