Magnesium acts similar to sodium when forming an ionic bond in terms of losing or gaining electrons. What is the most likely way in which an atom of magnesium Mg will satisfy the octet rule when it forms bonds?

A magnesium atom has two electrons in its outer shell. It can achieve a full shell beneath by losing those two electrons, forming a Mg²⁺ ion. Therefore, the most likely way is losing two electrons, choice C.

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