The maximum energy is needed in the formation of monopositive gaseous ion of:

Chemistry · JEE Main · NTA Exams — Classification of Elements and Periodicity in Properties

1. 1 mole of Cs atoms
2. 1 mole of Li atoms
3. 1 mole of Na atoms
4. 1 mole of Be atoms

Answer

(D) 1 mole of Be atoms

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