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Q.

The electronic configuration of Gadolinium (Gd) is

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a

$| X e | 4 f^{8} 5 d^{10} 6 s^{2}$

b

$| X e | 4 f^{7} 5 d^{0} 6 s^{2}$

c

$| X e | 4 f^{7} 5 d^{1} 6 s^{2}$

d

$| X e | 4 f^{8} 5 d^{1} 6 s^{1}$

answer is A.

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Detailed Solution

${}_{64}{Gd} - - [Xe] 4 f^{7} 5 d^{1} 6 s^{2}$

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