Question

which of following specie has maximam number of unpaired electrons
O2. O+2. O -2 O2^-2​

Answer 1

Answer:

O2 and O+2 both have 2 unpaired electrons.

Explanation:

According to molecular orbital theory, there are two unpaired electrons in O2. And in O+2 there are two unpaired electrons in valence shell i.e 2p. O-2 and O2^-2 both have no unpaired electrons.