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Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has
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- high bond dissociation energy
- smaller atomic radius
- stable half filled 2p sub level
- high nuclear charge
- high bond dissociation energy
Correct Option: C
Ionization energy is a measure of the ease in which atoms lose electrons and become positive ions. The 2s222p3 configuration in Nitrogen is more stable than 2s22p4 due to half filled p-sublevel. Hence nitrogen, N atom has greater ionization energy than oxygen, O atom.
