Chemical Bonding and Molecular Structure

Chemical Bonding and Molecular Structure

Question

Which one of the following sets of ions represents a collection of isoelectronic species?

  • K+ , Cl , Ca2+, Sc3+

  • Ba2+, Sr2+, K+ , S2–

  • N3–, O2–, F , S2–

  • Li+ , Na+ , Mg2+, Ca2+

Answer

A.

K+ , Cl , Ca2+, Sc3+

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