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When ions are formed, atoms either gain or lose electrons. How does the size of a magnesium ion compare to an atom of magnesium?
A magnesium ion will be larger than an atom of magnesium because there is a gain of electrons.
A magnesium ion will be larger than an atom of magnesium because there is a loss of electrons.
A magnesium ion will be smaller than an atom of magnesium because there is a loss of electrons.
A magnesium ion will be smaller than an atom of magnesium because there is a gain of electrons.
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