Ernest Rutherford is well known for his nuclear theory of the
atom with his gold-foil experiment. When he shot a ray
of alpha particles at a sheet of gold foil, a small number of the particles were bounced. He concluded
that a small, dense nucleus was producing the deflections. This
experiment concluded that every atom contains a nucleus where its positive
charge and most of its mass are concentrated. Thus, led to the discovery of the atomic nucleus.
