Question

what is the stability of the nitrogen molecule and why is it not affected by wave frequencies?

Answer 1

The molecule of nitrogen consists of two atoms of nitrogen bonded by a triple bond .
The basic steps involved in a chemical reaction is breaking of existing bonds and formation of new bonds.But in the case of nitrogen,It is having bond energy required for breaking of bonds.The triple bond in nitrogen is the major reason for its stability as the bonds dont break easily at room temperature.
Hope it clarifies the stability of nitrogen.

Because the nitrogen gas molecule is so simple, it cannot do very much with the wave frequencies that it absorbs. It can spin or vibrate only a little bit by stretching and pulling. In simple words we could say that nitrogen is not affected by wave frequencies because N2 molecule do not have any kind of polarity to effectively absorb the wave frequencies.