Which of the following species have maximum number of unpaired electrons?
The electronic configuration of the O2 containing 16 electrons can be written as:
1s2∗1s22s2∗2s22pz22px22py2∗2px1∗2py1
The electronic configuration of the O+2 containing 16 electrons can be written as:
1s2∗1s22s2∗2s22pz22px22py2∗2px1∗2py0
The electronic configuration of the O−2 ion containing 17 electrons can be written as:
1s2∗1s22s2∗2s22pz22px22py2∗2px2∗2py1
The electronic configuration of the O−22 ion containing 18
electrons can be written as:
1s2∗1s22s2∗2s22pz22px22py2∗2px2∗2py2