Q. Which of the following has the highest ionization enthalpy?

  • (A) Lithium
  • (B) Boron
  • (C) Carbon
  • (D) Neon
✅ Correct Answer: (D) Neon
Explanation: Neon is a noble gas with a completely filled electronic configuration, giving it the highest ionization enthalpy among the options.

Published by Jyoti ⭐ 1.79K Points at 15-Jun-2026 01:42 pm in Chemistry

Explanation by: Jyoti
Neon is a noble gas with a completely filled electronic configuration, giving it the highest ionization enthalpy among the options.

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