Multiple choice

Which one of the following sets shows the isoelectronic species?

  1. CO, N2, O2, NO+

  2. CO, N2, O2+, CN-

  3. CO, F2, NO+, CN-

  4. CO, N2, NO+, CN-

  5. CO, N2+, NO+, CN-
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Isoelectronic species have same number of electrons. CO, N2, NO+ and CN- each have 14 electrons.

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