Question

Which one of the following iso- electronic with argon ?

Answer 1

Answer:

The chemical species isoelectronic to Ar are phosphide ion (P3− ), sulfide ion (S2− ), chloride ion (Cl− ),... The chemical species isoelectronic to Ar are phosphide ion (P3− 3 − ), sulfide ion (S2− 2 − ), chloride ion (Cl− − ), potassium ion (K+ + ), calcium ion (Ca2+ 2 + ), and scandium ion (Sc3+ 3 + ).