1. Tardigrade
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  3. Chemistry
  4. Which among the following elements has the highest first ionization enthalpy?

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Q. Which among the following elements has the highest first ionization enthalpy?

AIEEEAIEEE 2012Classification of Elements and Periodicity in Properties

Solution:

Due to stable $2s^2 \,2p^2$ configuration, (half filled p-orbital) Nitrogen atom has highest energy.