Electrical charged atom or group of atoms formed by lose or gain of electrons are ions
Explanation
Ions are formed when atom gain or lose electron.
They are two type of ion that is cation and anion.
Cation are positively charged ion and are formed when atom loses one or more electrons. for example Na+ formed when Na atom loses 1 electron.
Anion are negatively charged ion and are formed when atom gain one or more electrons. for example Cl- is formed when Cl atom gain 1 electron.
