Rutherford suggested the following Model of the atom.
- Atom may be regarded as a sphere of diameter 10 angstrom but whole of the positive charge and almost the entire mass of the atom is concentrated in a small central core called nucleus having diameter of about 10 to the power -14 m
- As the atom is electrically neutral, the total positive charge of the nucleus is equal to the total negative charge of the electrons in it.
- The electrons in the atom were considered to be distributed around the nucleus in the empty space of the atom.If the electrons were at rest, they would be attracted and neutralized by the nucleus. To overcome this, Rutherford suggested that the electrons are revolving around the nucleus in circular orbits,so that the centripetal force is provided by the electrostatic force of attraction between the electron and the nucleus.