About Rutherford........very common?

In early 1900's, Ernest Rutherford performed an experiment with gold foil targets and alpha particles to probe the structure of the atoms. He observed that most of these alpha particles d the foil undeflected. Realising the atoms are electrically neutral and that the m of a proton is significantly greater than the m of an electron, use Rutherford's data to propose a atructural model of an atom!