Question

Why N atoms do not repel each other ?​

Answer 1

Answer:

Protons in nucleus no doubt are repelled by each other. But we know that an atom is stable. The reason for this is that the protons and the neutrons(together called nucleons) are attracted to each other by a strong for called nuclear force. This force acts only in the distances of orders of angstrom or picometre. As mentioned earlier, not only protons are attracted by this force but the neutrons too are. If the distance increases this force decreases drastically. Also this force depends on the no of particles. This is the reason why heavier elements have higher n/p ratio.

Answer 2

The atomic configuration of N is 1s22s22p3 when N atoms comes close the p orbital overlaps laterally to form ppi-ppi multiple bonds.

That is why they don't repel each other.