What do oxygen atoms and oxide ion have in common?(A) same size(B) same number of electrons(C) same electronic configuration(D) same number of protons
The correct answer is (C) same electronic configuration.
Both oxygen atoms and oxide ions have the same electronic configuration. They each have 8 electrons in their outer shell, following the octet rule. Oxygen atoms have 6 electrons in their outer shell, and they typically form two additional bonds to achieve a full outer shell, resulting in 8 electrons. Oxide ions, on the other hand, gain two electrons to achieve a full outer shell, also resulting in 8 electrons. Therefore, they share the same electronic configuration.
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