Multiple choice

Which of the following have two unpaired electrons in antibonding molecular orbitals?

  1. NO

  2. C<sub style="font-family:">2<sup style="font-family:">

  3. O<sub style="font-family:">2

  4. N<sub style="font-family:">2

  5. F<sub style="font-family:">2

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

F(18 e-) : σ1s2 ϭ*1s2 ϭ2s2 ϭ*2s2 ϭ2pz2 π2px2 π2py2 ϭ*2pz2 π*2px1 π*2py1 Two unpaired electrons in antibonding molecular orbitals.