Ms.Gilbert project

By Jay_Day
  • 460


    Born: BC 460,
    Died: BC 370 An ancient greek philosopher who was known for the atomic theory.
  • Law of conservation of mass

    Law of conservation of mass
    Discovered in 1789 by Antoine Lavoisier. States that mass can neither be created nor destroyed in chemical reactions.
  • Dalton's atomic theory.

    Dalton's atomic theory.
    Discovered by John Dalton, this was known as the first useful atomic theory of matter.
  • law of definite proportions

    law of definite proportions
    Discovered by Josewph Proust, this law states that a chemical compound always contains exactly the same proportion of elements by mass.
  • J.J. Thompson

    J.J. Thompson
    J.J. Thompson (18 December 1856 – 30 August 1940), was a physicist who discovered the electron and conducted the Cathode Ray tube experiment.
  • Robert A. Millikan

    Robert A. Millikan
    Robert A. Millikan, an American Physicist who won a nobel prize for his measurement of the charge on the electron and for his work on the photoelectric effect.
  • Ernest Rutherford

    Ernest Rutherford
    Ernest Rutherford August 30, 1871 - October 19, 1937 who created the rutherford model of an atom.
  • Cathode Ray Tube Experiment

    Cathode Ray Tube Experiment
    Discovered by J.J. Thompson, it was examined in hope to gain information of the nature of Cathode tube rays.
  • Plum Pudding Model

    Plum Pudding Model
    Discovered by J.J. Thompson, it helped him discover the electron and announce the fact that atoms must have structures.
  • Gold Foil Experiment

    Gold Foil Experiment
    Rutherford's conclusion that most of the mass of an atom was contained in the small nucleus, and that the rest of the atom was mostly empty space,
  • Bohr Planetary Model

    Bohr Planetary Model
    A model proposed by Niels Bohr, which is a modification of Rutherford's model.
  • Quantum Mechanical Model

    Quantum Mechanical Model
    A model that was created to explain observations of an atom.
  • Rutherford Model

    Rutherford Model
    The model of an atom, which was made by Ernest Rutherford.