The outer electronic coonfiguration of cerium is

Options

A. `6s^(2), 4f^(1), 5d^(1)`
B. `6s^(2), 4f^(2), 5d^(0)`
C. `6s^(2), 4f^(7), 5d^(1)`
D. `6s^(2), 4f^(13), 5d^(0)`

Answer

B

Explanation

Most accepted electronic configuration cerium is `6s^(2), 4f^(2), d^(0).` It is due to 4f orbitals has lower energy that 5d orbitals.