Chemical Bonding and Molecular Structure

Chemical Bonding and Molecular Structure

Question

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

  • K+ , Ca2+, Sc3+, Cl-

  • Na+ , Mg2+, Al3+, Cl-

  • K+ , Cl- , Mg2+, Sc3+

  • Na+ , Ca2+, Sc3+, F-

Answer

A.

K+ , Ca2+, Sc3+, Cl-

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