Difference between valence bond theory and molecular tal theory
Answers
Information about Molecular orbital theory :
1. It regards the nuclei of the molecules as polycentric and constructs the molecular orbitals.
2.The Atomic orbitals lose their individual identity while combining.
3. It takes into account only the increase or the decrease in the electron density at over lapping.
4.The number of bonds is half the difference in the bonding and anti-bonding electrons.
5. It helps in predicting the paramagnetic or diamagnetic character of the molecules.
6. In this theory resonance is not at all considered.
Details of Valency Bond theory :
1. Electrons present in the molecule are localised as if they are in isolated atoms.
2.The Atomic orbitals of the combining atoms retain their individual identity.
3. It involves only the increase in the electron density in the region of orbital overlap.
4.The number of covalent bonds formed is equal to the number of combining orbitals.
5.This theory doesn't help in predicting the paramagnetic or diamagnetic behaviour of molecules.
6. It is easy to apply.
7. In this theory resonance is considered.