Question

explain the formation of N2 molecule using valency bond theory!!!​

Answer 1

Answer:

Explanation:

According to valence bond theory, the number of bond formed by and atom is equal to the number of unpaired electron present in it. Also, only those two atoms make bond which have a unpaired electron with opposite spin. In N2, both the nitrogen atom have 3 unpaired electron, thus they form triple bond in this molecule.

:N≡N:

Similarily, the oxygen atom have two unpaired electrons. Thus they form double bond with each other.

O=O

Answer 2

The electronic configuration of ‘N’ atom is 2, 5 and to have Octet in the valence shell it requires three more electrons. When two nitrogen atoms approach each other, each atom contributes 3 electrons for bonding. There are six electrons shared between two nitrogen atoms in the form of three pairs. Therefore, there is a triple bond between two nitrogen atoms in $\sf{N _{ 2 }}$molecules.