Question

Why NITROGEN EXIST AS N3 BUT PHOSPHORUS EXIT AS P4??​

Answer 1

Answer:-

Due to larger atomic size P is unable to form pi bonds and so it is tetra-atomic in which each P atom is linked with 3 other P atoms by 3 sigma bond.

But, due to smaller atomic size N forms 1 sigma and 2 pi bonds i.e. triple bonds with other N atom and exists as diatomic molecule.

Answer 2

HOLA MATE

BECAUSE THE SIZE OF NITROGEN ATOMIS VERY SMALL AND HIGH ELECTRONEGATIVITY NITROGEN,ABSENECE OF D ORBITAL MAKES TRIPLE BONG FOR STABLE MOLECULE

BUT IN PHOSPHORUS THE SIZE IS LARGE AND LESS ELECTRONEGATIVITY PRESENCE OF D ORBITAL SO ITS SINGLE BOND IS STRONG AND IT MAKE BOND WITH OTHER 3 PHOSPHORUS ATOMS