Ernest Rutherford


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Gold Foil Experiment

Rutherford shot tiny, minute particles at a thin sheet of gold. A small percentage of the particles were deflected, but most passed through the gold sheet. Rutherford concluded that the mass of an atom is concentrated at the center of the atom.
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2 Things That Were Discovered About The Atom

  1. An atom had more than just empty space and electrons.
  2. It must contain a positively charged nucleus that contains almost all of its mass.
Rutherford's Experiment: Nuclear Atom