Planetary model of atom was given by Scientist Ernest Rutherford, according to this model of an atom the protons and neutrons are concentrated at the centre of the atom in a compact structure known as Nucleus that resembles the sun and electrons revolves around the Nucleus just like planets in fixed orbits.
Neutron - subatomic particle with no charge
Electron - subatomic particle with negative (-) charge
Proton - subatomic particle with positive (+) charge
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