What is an ion?

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Multiple Choice

What is an ion?

Explanation:
An ion is an electrically charged atom, radical, or molecule formed by the gain or loss of one or more electrons. This change in electron count gives a net charge: removing electrons creates a positively charged ion (cation), while adding electrons creates a negatively charged ion (anion). Neutral atoms or molecules, with no net charge, are not ions. The other statements describe neutral molecules or unrelated situations (a gas in solution), which don’t define what an ion is.

An ion is an electrically charged atom, radical, or molecule formed by the gain or loss of one or more electrons. This change in electron count gives a net charge: removing electrons creates a positively charged ion (cation), while adding electrons creates a negatively charged ion (anion). Neutral atoms or molecules, with no net charge, are not ions. The other statements describe neutral molecules or unrelated situations (a gas in solution), which don’t define what an ion is.

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