Here's why:

* Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond.

* Nitrogen has an electronegativity value of 3.04 on the Pauling scale.

* This is higher than many other elements, such as carbon (2.55) and hydrogen (2.20).

Therefore, nitrogen is considered to be quite electronegative. This means it tends to pull electrons towards itself in a bond, leading to polar covalent bonds.