Atom timeline by Maleek

By maleek.woodard2018
  • 460

    Democritus(B.C)

    Democritus(B.C)
    He discover that everthing is made up of atom.He use theories of observations.
    http://www.universetoday.com

  • Dalton

    Dalton
    He discover that atom were made up of gas. He gathered evidence from experiments. He think atom were combine of compound due their wight of the atom.
    http://www.universetoday.com

  • Thomson

    Thomson
    He discover that atom have protons and electrons. Thomson use mathematical models. He use the Plum Pudding model.
    http://www.iun.edu.com

  • Rutherford

    Rutherford
    Rutherford discover everthing is arrange in the protons in the nucleus and electrons are going around the nucleus. He gather evidence from experiments and use mathematical models.
    http://www.iun.edu.com

  • Bohr

    Bohr
    Bohr discover when atom give off energy the electrons orbit get high or low. Bohr use quantum theory. And he think that electrons orbitng around the nucleus.
    http://www.pbs.org

  • Heisenberg and Schrodinger

    Heisenberg and Schrodinger
    They discover electrons are waves. They use two-sit experiment mathematical models. An empty space with electrons wave are around it.
    http://www.colorado.edu