A) \[4{{f}^{1}}5{{d}^{1}}6{{s}^{2}}\]
B) \[4{{f}^{2}}5{{d}^{0}}6{{s}^{2}}\]
C) \[4{{f}^{2}}5{{d}^{1}}6{{s}^{2}}\]
D) \[4{{f}^{1}}5{{d}^{0}}6{{s}^{2}}\]
Correct Answer: A
Solution :
[a] The electronic configuration of Cerium \[(Ce)\] is \[4{{f}^{1}}5{{d}^{1}}6{{s}^{2}}\]
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