Question

On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?

NCERT Class IX
Sciences - Main Course Book

Chapter 4. Structure of the Atom

Answer 1

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. 

Answer 2

on the basis of the rutherford ' s model of an atom ,protons are present in the nucleus of an atom .