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Period: to
Atom timespan
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Dalton's solid sphere model
Dalton theorized that atoms were a solid sphere. -
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
Rutherford discovered that atoms are made up of a center charge (nucleus) surrounded by a cloud of electrons. -
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 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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