Ion

An atom or molecule that has lost or gained one or more electrons and has become electrically charged as a result.

Atomic matter that has unequal number of positive and negative charges, so its net charge is not zero.

A charged particle.

An electrically charged atom or group of atoms that has lost or gained electrons; a loss makes the resulting particle positively charged; a gain makes the particle negatively charged.

An atomic particle that is electrically charged, either negative or positive.

atoms that have either a positive or negative charge.