jasmines atomic model

Timeline created by jengand
  • May 2, 1000

    Democritus

    Democritus
    His theory said that all matter consisted of snaller particles that couldn't be divided.He asked a question thats is if you break matter then how many times couldyou break it again untill you can't?
  • Sep 5, 1000

    Aristole

    Aristole
    He belived that there was no limit on the amount of times matter could be divided And all subbstances were made up of the 4 elements fire, air, water, and cold. His model described matter.
  • John Dalton

    John Dalton
    Daltons theory said that all matter is made up of induvidual particles which are atoms that cannot be dividedd
  • J.J Thompson

    J.J Thompson
    Thompsons therory that atoms are made of even smaller particles.In his experiment he used an electric current and they helped prove his theory.
  • Hantaro Nagaoka

    Hantaro Nagaoka
    He said that electrons move in orbit and that am atom had a central nucleus.
  • Ernest Rutherford

    Ernest Rutherford
  • Neils Bohr

    Neils Bohr
    He proved that electrons gain or lose energy when theymove between energy levals and that electrons move in circular orbit around the nucleus.
  • Ernest Marsden

    Ernest Marsden
    He did experiments that made a beaam pass throungh gold foil. His theory said that an atom has a dense positvly charged nucleus, and the electrons move randomly in the space around it.
  • Louis De Broglie

    Louis De Broglie
    He said electrons have propeties like waves
  • James Cadwick

    James Cadwick
    He said there were different partickes in an atoms nucleus and he found that there were protons and neutrons in the nucleus.
  • Erwin Schrodinger

    Erwin Schrodinger
    He did math equations to come up with the Electron Cloud Model.