Atomic Sturcture_Maresca and Connor

By mar.visone
  • 400

    Democritus

    Democritus' Atomic ModelMatter is composed of small particles called "atoms" that could be divided no further. Atoms are indivisible.

  • Lavoisier

    Law of Conservation of Mass(Matter)He made measurements of a chemical change in a sealed container. Founded the Law of Conservation of Mass.

  • Proust

    Law of Definite ProportionsHe is a French chemist who founded the Law of Definite Proportion.

  • Dalton

    Dalton's Atomic Theory

  • Thomson

    Cathode Ray Tube
    He used the cathode ray experiment and found that electrons and protons exist.

  • Rutherford

    Gold Foil ExperimentPlum Pudding Model
    He revised the plum pudding model and the gold foil experiment concluded that atoms must be mostly empty space, they have a small dense center, and the nucleus must be positively charged since alpha particles are positive.

  • Millikan

    Oil Drop ExperimentRobert A. Millikan was an American experimental physicist, and Nobel laureate in physics for his measurement of the charge on the electron.

  • Chadwick

    Chadwick's atomic modelChadwick proved the existence of the neutron