Which of the following has unpaired electron(s) ?
As we learned
The increasing order of energies for O2 and F2 -
Magnetic behaviour of molecule -
If all the molecular orbitals in a molecule are doubly occupied, the substance is diamagnetic
However if one or more molecular orbital are singly occupied it is paramagnetic e.g. O2
has one impaired electron in orbital.
Molecular orbital diagram of