Question

Why only nitrogen have 3bonds and for not others

Answer 1

Answer: Nitrogen has three bonds between its atoms. This is called a triple bond. The triple bond is very strong and this is what makes nitrogen so unreactive (stable). There are no ions present (no + or - charges) in nitrogen gas because the electrons are shared, not transferred from one atom to another.

Explanation:

Answer 2

here you go:

Because nitrogen have 5 valence electrons it wants 3 electrons to fulfill the octet rule so it form three bonds. Nitrogen and oxygen are diatomic molecules