MCQ
$Ce - 58$ is a member of
- A$s$-block elements
- B$p$-block elements
- C$d$-block elements
- ✓$f$-block elements
✓
Answer
Correct option: D.
$f$-block elements
d
The electronic configuration of $Ce$ is $[ Xe ] \,4 f ^1 \,5 d ^1 \,6 s ^2$.
The electronic configuration of $Ce$ is $[ Xe ] \,4 f ^1 \,5 d ^1 \,6 s ^2$.
Since the electron has entered the $f$ orbital, $Ce$ is an $f$ block element.
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