File:Chapter-6 - PREDICTION OF THE MAGNETIC BEHAVIOUR AND BOND ORDER OF DIATOMIC SPECIES WITHOUT MOLECULAR ORBITAL THEORY (MOT) pp 59-68.pdf

In chapter 4, formulae-based mnemonics have been discussed to predict the bond order of homo and heteronuclear diatomic species without drawing their electronic configurations based on molecular orbital theory (M.O.T.). In chapter 5, the prediction of bond order of oxide-based acid radicals has been discussed without drawing Lewis structures in a time economic way. In this chapter 6, magnetic properties of diatomic species having the total number of electrons (1-20), have been predicted without drawing electronic configuration by using molecular orbital theory. Here, three (03) time economic innovative mnemonics have been discussed by including three (03) formulae to predict the magnetic behavior of diatomic species without using M.O.T. Conventionally, magnetic properties of diatomic species, predicted from the Molecular Orbital Theory by counting the number of unpaired electrons present in the bonding molecular orbitals (BMOs) or antibonding molecular orbitals (ABMOs) of diatomic species. If in the electronic configuration, diatomic species, contain unpaired or paired electrons in its bonding molecular orbitals (BMOs) or antibonding molecular orbitals (ABMOs), then it will be paramagnetic or diamagnetic, respectively. In this chapter 6, adequate examples on the prediction of bond order of homo and heteronuclear diatomic molecules or ions having the total number of electrons fall in the range (1-20) without molecular orbital theory (discussed in chapter 4) have been explored also in the tabulated form.