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The electronic states X and Y of an atom...

The electronic states X and Y of an atom are depicted below:
X:`1s^(2)2s^(2)2p^(6)3s^(1)`
Y: `1s^(2)2s^(2)2p^(6)3s^(2)4s^(1)` Which of the following statements is not correct?

A

Energy is required to change i to ii

B

(i) represents Na atom

C

(i) and (ii) represent different elements

D

More energy is required to remove one electron from (i) than (ii)

Text Solution

Verified by Experts

The correct Answer is:
C, D
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