Multiple choice

Which pair represents isoelectronic species only?

  1. CN+, NO3+

  2. NO+, CN2-

  3. NO2+, O2-

  4. CN-, O2-

  5. O2-, CN+
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CN+ has 12 electrons. NO3+ has 12 electrons. Hence, both CN+ and NO3+ are isoelectronic species.

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