NEETChemistryp Block Elements (Group 15, 16, 17 & 18)
Why don't heavier elements of group 15, like phosphorus and arsenic, form pπ-pπ bonds like nitrogen?
Options
- ADue to high ionization enthalpy
- BDue to high electronegativity
- CDue to the absence of d orbitals
- DDue to the large and diffuse atomic orbitals
Correct answer
D. Due to the large and diffuse atomic orbitals
Step-by-step solution
The paragraph states that heavier elements of group 15, like phosphorus and arsenic, do not form pπ-pπ bonds like nitrogen because their atomic orbitals are large and diffuse, preventing effective overlapping.