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NEETChemistryp Block Elements (Group 15, 16, 17 & 18)

Why do phosphorus and arsenic have a greater covalency than nitrogen?

Options

  1. ASmaller atomic size
  2. BPresence of d orbitals
  3. CHigher ionization enthalpy
  4. DHigher electronegativity

Correct answer

B. Presence of d orbitals

Step-by-step solution

Phosphorus and arsenic have a greater covalency than nitrogen because they have vacant d orbitals in their outermost shell, which allows them to form more bonds.

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