Compare the properties of protons, electrons and neutrons.

Protons Electrons Neutrons
They are positively charged particles. They are negatively charged particles. They are neutral particles.
Charge on protons is +1. Mass of protons is 1.6727×10⁻²⁷kg. Charge on electrons is -1. Mass of electrons is 9.1×10⁻³¹ kg. They have no charge. Mass of neutrons is 1.675×10⁻²⁷ kg.
Protons are present inside the nucleus. Electrons are present outside the nucleus. They revolve around the nucleus. Neutrons are present inside the nucleus.