Question

Draw the molecular orbital diagram for the formation of $ N_{2}^{+} $ ion. Calculate the bond order and describe its magnetic behavior.

Answer 1

Hint: We know that generally the molecular orbital diagrams are used to understand the bonding of a diatomic molecule. You should know that molecular orbital diagrams are used to deduce magnetic properties of a molecule; they also help us to find out the bond order of the molecule.

Complete Step By Step Solution :
First, let us understand the concept of molecular orbital theory. On a very general basis, electrons are not assigned to individual bonds between atoms, but they move under the influence of the nuclei in the whole molecule. Molecular orbital theory is a method for describing the electronic structure of the molecule.
As we know the electron has an electron magnetic dipole moment, which is generally generated by the electron’s spin property, which induces an electric charge into motion. As we can see the term “magnetic” refers to the magnetic dipole. There are many types of magnetic behavior which are paramagnetic, diamagnetic and ferromagnetic. Bond order: In simple words, it can be stated that bond order is the difference between the number of bonds and antibonds. Bond number also gives an indication of the stability of a bond.

When two atomic orbitals combine they form two new molecular orbitals, one by the additive effect of the atomic orbitals which is called the bonding molecular orbital and the other is formed by the subtractive effect of the atomic orbitals which is called the antibonding molecular orbital.

Note:
Remember that you should generally know that the electron probability distribution around a nucleus in an atom is given by an atomic orbital; likewise the electron probability distribution around a group of nuclei in a molecule is given by a molecular orbital diagram.