Atomic Model Timeline

Timeline created by jocelynlewis14
  • John Dalton

    John Dalton
    atomic theory is a theory of the nature of matter, which states that matter is composed of discrete units called atoms, as opposed to the obsolete notion that matter could be divided into any arbitrarily small quantity
  • j.j. thomson experiment

    j.j. thomson experiment
    "plum pudding" model—the electrons were embedded in the positive charge like plums in a plum pudding (although in Thomson's model they were not stationary, but orbiting rapidly).
  • Hantaro nagaoka

    Hantaro nagaoka
    Eletrons move in orbits like the rings around saturn.
  • Ernest Rutherford

    Ernest Rutherford
    Electrons move randomly in the space around the nucleus.
  • Neils Bohr

    Neils Bohr
    the electrons movein spherical orbits at fixed distances from the nucleus.
  • Werner Heisenberg & Erwin Schrodinger

    Werner Heisenberg & Erwin Schrodinger
    an electron cloud is a visual model of the most likely locations for electrons in an atom.
  • James Chadwick

    James Chadwick
    Atomic nuclei contain neutrons and positivelycharged protons.