Which element has the greatest electronegativity? n p as

Nitrogen

Explanation: Electronegativity is the tendency of an element to attract the shared pair of electrons towards itself.

The atomic radii of elements vary in the order:

As the size of the element increases, the electronegativity decreases as the valence shell moves far from the nucleus.

it is stable as it is in group 0 which have full outer shells of electrons