Question

$Ce$ (Atomic Number = $58$) is a member of:

• A. s-block
• B. p-block
• C. d-block
• D. f-block

Answer 1

The correct option is D f-block

Cerium, $Ce-58$ is a member of f - block.

Electronic configuration of it is: [$Xe$]$4f^{1}5d^{1}6s^2$

Hence, the correct option is $\text{D}$