Question

neutron, electron, cation , proton.Which one is odd and name the category to which other three belongs to​

Answer 1

proton is a subatomic particle, symbol

p

or

p+

, with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron. Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons" (particles present in atomic nuclei).