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Rutherford's alpha-scattering experiment related to the size of the

  • A.Nucleus
  • B.Atom
  • C.Electron
  • D.Neutron

Answer: A

The experiment established the size of the nucleus.

From the closest approach of alpha particles scattered straight back, Rutherford put the nucleus at about \(10^{-15}\ \mathrm{m}\) across - some ten thousand times smaller than the atom, so that the atom is almost entirely empty space.

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