* Electronegativity: Nitrogen has an electronegativity of 3.04. Since both nitrogen atoms in the molecule are identical, they have the same electronegativity.
* Equal Sharing: This means that the electrons in the triple bond between the two nitrogen atoms are shared equally. There is no uneven distribution of electron density, and no partial positive or negative charges develop on either nitrogen atom.
In summary, a polar bond requires a difference in electronegativity between the atoms involved. Since nitrogen atoms have the same electronegativity, the bond in N₂ is nonpolar.