A) \[s-\]block elements
B) \[p-\]block elements
C) \[d-\]block elements
D) \[f-\]block elements
Correct Answer: D
Solution :
The electronic configuration of Ce is \[{{\,}_{58}}Ce={{[Xe]}_{54}}4{{f}^{2}}6{{s}^{2}}5{{d}^{0}}\] Because of the presence of partially filled \[f-\]orbitals, Ce is a \[f-\]block element.
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