Read the following statements: Statement I: Nitrogen has a higher first ionisation enthalpy than Oxy — Periodic Table and Periodicity Chemistry Question
Question
Read the following statements: Statement I: Nitrogen has a higher first ionisation enthalpy than Oxygen. Statement II: Oxygen has a smaller atomic radius than Nitrogen. Choose the correct option:
Answer: B
💡 Solution & Explanation
Both statements are factually correct. However, Nitrogen's higher IE is not due to Oxygen's smaller size, but rather due to Nitrogen's highly stable, half-filled $2p^3$ electronic configuration.
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