The Atom

  • Dalton

    John Dalton discovered the atom.
  • Thompson

    In 1897 the electron was discovered by J.J. Thompson. The plum pudding model of the atom was proposed by Thompson.
  • Rutherford

    Ernest Rutherford proved the plum pudding model to be false in 1909. He proposed a planetary model, which shows electrons orbiting a small, positive-charged nucleus.
  • Bohr

    Niels Bohr proposed the Bohr Model. This model explains the electrons orbit around the nucleus. He explained what Rutherford couldn't explain.
  • Schrodinger

    Erwin Schrodinger described the wavelike behavior of moving particles. He did this by using the Schrodinger's equation in 1926.