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He described the mass of an atom was located in a single point not equally shared as the plumb pudding model suggested it. However he did not use the term nucleus in his report.
Rutherford contributed large amounts to atomic science, the most renowned of these was possibly the Rutherford or Planetary Model. The Rutherford Model shows the nucleus of an atom containing protons...
Ernest did an experiment where he shot alpha particles into a gold foil that proved the concept of a nuclear atom,that is an atom with a nucleus made of protons and neutrons and have electrons moving...