Which of These Pairs Constitutes an Isoelectronic Pair

question 98

Multiple Choice

Which of these pairs constitutes an isoelectronic pair?

• A) Mn²⁺ and Ar
• B) Zn²⁺ and Cu²⁺
• C) Na⁺ and K⁺
• D) Cl^- and S
• E) K⁺ and Cl^-

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