Answers

2015-05-21T16:28:19+05:30
Rutherford, on basis of his alpha-scattering experiment proved that most of the part of an atom is empty.

All the mass and positive charge (At that time proton was not named) of the atom was present in a small part(nucleus too wasn't named) at the center of the atom.

This simply means that protons were present in nucleus of atom. 
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