Which one of the following sets of ions represents a collection of isoelectronic species?
- (A)✓ Correct
- (B)
- (C)
- (D)
Answer: (A)
Solution
Isoelectronic species share the same electron count. Taking as , as , as and as , all four carry 18 electrons and match the argon configuration. The other sets mix ions of differing electron counts, so the collection is the isoelectronic one.
JEE Main · 2006 · 30 Apr 2006 · Offline · Single correct option