History Of The Atom Timeline by : Alyssa & Selby

By Selby&Alyssa
  • 400

    Democritus (BC)

    Democritus (BC)
    He came up with the atom which means uncuttable ; that's where we get the word atom from. He said that all matter was made of the uncuttable particles. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 25 Feb. 2014.

  • Dalton

    Dalton
    He came up with the first scentific experiment that show that matter made of tiny little particlues or balls.

  • Heisenberg And Schrodinger (1925-1927)

    Heisenberg And Schrodinger (1925-1927)
    He beleived that atoms did not exsist,

  • Thomson (1800)

    Thomson (1800)
    He discovered that atoms have electrons. He also discovered that electrons are much much smaller than atoms.

  • Rutherford (1911)

    Rutherford (1911)
    He discovered that atoms had a nucleous. That all the possitive charges in an atom is considered in the center. That all the atoms were taken up space.

  • Bohr (1913)

    Bohr (1913)
    He discovered the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus—similar in structure to the solar system, but with attraction provided by electrostatic forces rather than gravity

  • Aristotle (BC)

    Aristotle (BC)
    He said that different things were made of different amounts of the elements earth , water , air , fire , and heat. He didn't think that atoms exsisted. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 25 Feb. 2014.