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Byju's Answer
Standard XII
Chemistry
Effect of Nuclear Charge
When the 3 d ...
Question

When the 3d orbital is complete, the new electron enters

A

4p orbital

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B

4f orbital

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C

4s orbital

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D

4d orbital

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Solution

The correct option is A

4p orbital


After 3d orbital is filled the electron enters 4p orbital 3d and 4p have same( n+l) vale of 5. 4p has more energy than 3d as n value is more so electrons first enter 3d and than 4p.

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