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

Why is the ionization enthalpy of Group 15 elements much greater than that of Group 14 elements in the corresponding periods?

Options

  1. ASmaller size of Group 15 elements
  2. BHalf-filled p orbitals electronic configuration
  3. CGreater number of valence electrons
  4. DStronger metallic character

Correct answer

B. Half-filled p orbitals electronic configuration

Step-by-step solution

The paragraph attributes the much greater ionization enthalpy of Group 15 elements to their extra stable half-filled p orbitals electronic configuration.

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