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JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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If Aufbau rule is not followed, 19th electron in

\operatorname{Sc}(Z=21)

will have

View answer and explanation

Correct option: C

n=3,l=2

Option C (

n=3,l=2

) is correct because if the Aufbau rule is not followed, the 19th electron would fill the 3d orbital, corresponding to n=3 and l=2.

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