History of the Atom Timeline by( Kiersten Guy)

By KierstenG2018

  • Dalton

    Dalton
    Dalton discovered that atoms are tiny balls arranged in different combinations to make different compounds. He came up with the first scientific observation and proved that there are infact atoms.Kent. "Dalton's Model of the Atom." Dalton's Model of the Atom. N.p., n.d. Web. 24 Feb. 2015.DeWitt, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015.

  • Democritus ( 4th Century BC)

    Democritus ( 4th Century BC)
    Democritus said that everything is made of Atoms.Also that if you take a substance and cut it all the way up, you'll come to something you can't cut anymore called "atoms". He then further thought into the experiment and atoms assosiates with the taste or strength of the substance or they are just smaller particles of it.
    DeWitt, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015.

  • Thompson

    Thompson
    Thompson then discovered that atoms aren't indivisable, but they are made of even smaller things. He thought that if you take a Blueberry Muffin and split it in half, you would see that the berries are scattered in the doe. He said that the doe served as the positive charges of the atom and the berries served as the negative charges. He called his atom model "The Plum Pudding Model"DeWitt, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline.

  • Bohr

    Bohr
    Bohr concluded that electrons spun around the nucleas in orbits like planets arond the sun. But not only that but he also discovered that the energy levels in electrons are discrete and orbits the atomic nucleas which can jump from one energy level to another. DeWitt, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015."Bohr Atomic Model." Bohr Atomic Model. University of Oregon, n.d. Web. 24 Feb. 2015.

  • Heisenberg and Schrodinger

    Heisenberg and Schrodinger
    Heisenberg and Schrodinger said that Electrons wern't spinning in orbits but were scattered around rapidly sketching out different shapes in orbitals. He came up with his theory with the Quantum Mechanical Model.They used a microscope that looked closer than ever.D, Mike. "Mike D. Big Timeline Project." Reich-chemistry -. N.p., n.d. Web. 24 Feb. 2015.
    DeWitt, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015.

  • Rutherford

    Rutherford
    Rutherford discovered that all atoms have a nucleas and where there is a nucleas, there are positive charges. He preformed "The Goldfoil Experiment".He also said that besides the nucleas and electrons, atoms were pretty much empty space."Atomic Structure." Atomic Structure. University of Oregon, n.d. Web. 23 Feb. 2015.DeWitt, Tyler. "GaggleTube Video - Models of the Atom Timeline." GaggleTube Video - Models of the Atom Timeline. N.p., n.d. Web. 19 Feb. 2015.