JEE Main Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main

Which ionisation potential (IP) in the following equations involves the greatest amount of energy?

Answer: (A)

Solution

already has the stable, fully-filled noble-gas-like configuration of argon (after losing its single valence electron). Removing a second electron from this stable core () requires breaking into a complete, extra-stable shell, which demands an exceptionally large amount of energy.

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Question ID VK-133327