The ionization energy of nitrogen is larger than that of oxygen becaus

1.	The ionization energy of nitrogen is larger than that of oxygen because of [RPMT 1997; DCE 1999]
A.	Greater attraction of electrons by the nucleus
B.	The size of nitrogen atom being smaller
C.	The half-filled \[p\]-orbitals possess extra stability
D.	Greater penetration effect
Answer» D. Greater penetration effect

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The ionization energy of nitrogen is larger than that of oxygen because of [RPMT 1997; DCE 1999]

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