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Gadolinium belongsd to 4f series. It's a...

Gadolinium belongsd to 4f series. It's atomic number is 64. which of the following is the correct electronic configuration of gadolinium ?

A

`[Xe]4f^(9)5s^(1)`

B

`[Xe]4f^(7)5d^(1)6s^(2)`

C

`[Xe]4f^(6)5d^(2)6s^(2)`

D

`[Xe]4f^(8)6d^(2)`

Text Solution

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The correct Answer is:
B
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