The Atom: Timeline

By Psych911
  • Period: to

    Atom timespan

  • Dalton's solid sphere model

    Dalton's solid sphere model

    Dalton theorized that atoms were a solid sphere.
  • J.J. Thomson

    J.J. Thomson

    J.J. Thomson proposed a model of the atom once he discorvered the electron. His model resembled raisins stuck in a lump of pudding.
  • Ernest Rutherford's Atom

    Ernest Rutherford's Atom

    Rutherford discovered that atoms are made up of a center charge (nucleus) surrounded by a cloud of electrons.
  • Niels Bohr's Atom model

    Niels Bohr's Atom model

    Bohr theorized that an atom had orbits where the electrons would revolve around the nucleus.
  • Erwin Schrödinger's quantum mechanical model

    Erwin Schrödinger's quantum mechanical model

    Erwin Schrödinger made a model of the atom that showed a nucleus, surrounded by a could of electrons. The cloud of electrons wasn't like a still picture of many electrons, it was a picture showing where the most probable locations of the electrons would be.

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