Who came up with the first model of the atom?



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    The plum pudding model is taught as the earliest model of the atom, devised by J.J. Thomson in 1904.  He discovered the electron but the nucleus was still undiscovered, so his model showed small electrons (the plums) surrounded by positive charge (the pudding).

    Next came the Rutherford model, which was built on by the Bohr model in 1913 and is much closer to what is accepted today.  The Bohr Model shows a positive nucleus surrounded by electrons that orbit it.

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