A) \[[Xe]4{{f}^{8}}6{{d}^{2}}\]
B) \[[Xe]4{{f}^{9}}\,5{{s}^{1}}\]
C) \[[Xe]4{{f}^{7}}\,5{{d}^{1}}\,6{{s}^{2}}\]
D) \[[Xe]\,4{{f}^{6}}5{{d}^{2}}6{{s}^{2}}\]
Correct Answer: C
Solution :
\[_{64}Gd=[Xe],4{{f}^{7}},5{{d}^{1}},6{{s}^{2}}\]
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