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Q.

After 3d-sub level is completely filled the differentiating electron enters into ....... sub level.

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a

4s

b

4p

c

4f

d

5s

answer is B.

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Detailed Solution


orbital is filled with electrons in the order: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p,.......

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