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The electronic configuration of gadolini...

The electronic configuration of gadolinium (Atomic number 64) is

A

`[Xe]4f^(6)5d^(1)6x^(2)` and `[Xe]4f^(9)6s^(2)`

B

`[Xe]4f^(6)5d^(1)6s^(2), [Xe]4f^(7)5d^(1)6s^(2)` and `[Xe] 4f^(8)5d^(1)6s^(2)`

C

`[Xe] 4f^(7)6s^(2), [Xe]4f^(7)5d^(1)6s^(2)` and `[Xe]4f^(9)6s^(2)`

D

`[Xe] 4f^(7) 6s^(2), [Xe]4f^(8) 6s^(2)` and `[Xe]4f^(8)5d^(1)6S^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Electronic configuration of
`._(63)Eu = [Xe]_(54) 4f^(7)6s^(2)` Electronic configurationof `._(64)Gd = [Xe]_(54) 4f^(7)5d^(1)6s^(2)`
Electronic configuration of `._(65)Tb= [Xe]_(54)4f^(9)6s^(2)`
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