The electronic states X and Y of an atom are depicted below: X : 1 s 2 2 s 2 2 p 6 3 s 1…

Chemistry · Class 11 · CBSE — Structure of Atom

1. X represents an alkali metal.
2. Energy is required to change X into Y.
3. Y represents excited state of the element.
4. Less energy is required to remove an electron from X than from Y.

Answer

(D) Less energy is required to remove an electron from X than from Y .

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