The element that can form multiple bonds with itself from the following is
The element that can form multiple bonds with itself from the following is
antimony
arsenic
phosphorus
nitrogen
Solution
Among the given group-15 elements, nitrogen can form multiple bonds with itself. A strong multiple bonds are formed only when the overlapping is effective. i.e. overlapping orbitals are of similar energy and same symmetry. Nitrogen has small size and has $2 p$ orbitals (lower energy), shows $p \pi-p \pi$ bonding. Whereas, in the heavier elements the overlapping orbitals are bigger and are very high in energy as atomic size increases down the group. Thus, in these cases, effective overlapping for $p \pi-p \pi$ bond, does not takes place.