An Ion is an atom that has gained or lost ELECTRONS, so it has an overall charge. If an atom gains electrons, its overall charge becomes negative. If an atom loses electrons, its overall charge becomes positive. If an atom gains/loses electrons, its mass will not change.
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Ion
Explanation:
An Ion is an atom that has gained or lost ELECTRONS, so it has an overall charge. If an atom gains electrons, its overall charge becomes negative. If an atom loses electrons, its overall charge becomes positive. If an atom gains/loses electrons, its mass will not change.