Which of the following cations exhibits a pseudo-inert gas electronic configuration ( in the outermost shell), making its compounds highly covalent?

Question

Which of the following cations exhibits a pseudo-inert gas electronic configuration ($18e^-$ in the outermost shell), making its compounds highly covalent?

Prashant Kotian · Accepted Answer

Correct answer: C. has an electronic configuration of , possessing exactly 18 electrons in its outermost shell. This pseudo-inert configuration provides high polarizing power compared to 8-electron inert gas configurations.

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