Chemistry - Complete P-block Question with Solution | TestHub

Nitrogen forms trihalides of the type $N{X}_3$. The stability of these trihalides decreases down the group as the size of the halogen increases and the electronegativity decreases. Therefore, $N{F}_3$ is the most stable due to the small size and high electronegativity of fluorine, leading to strong N-F bonds.

The correct answer is $N{F}_3$.