Question

Nitrogen does not form pentahalides like phosphorus. Why?​

Answer 1

Nitrogen cannot increase its coordination number beyond four due to the absence of d-orbitals in its valence shell. ... Phosphorus forms pentahalides because it has vacant d-orbitals to extend its octet.

Answer 2

Nitrogen cannot increase its coordination number beyond four due to the absence of d-orbitals in its valence shell. ... Phosphorus forms pentahalides because it has vacant d-orbitals to extend its octet.