The atomic number of cerium `(Ce)` is 58. The correct electronic confguration of `Ce^(3+)` ions is :

Options

A. `[Xe]4f^(1)`
B. `[Kr]4f^(1)`
C. `[Xe]4f^(13)`
D. `[Kr]4f^(1)`

Answer

A

Explanation

Configuration of `Ce(Z = 58),`
Configuration of `Ce^(3+)` ion `4f^(1)`
`underset([Xe] 4f^(1))underset(darr-3e^(-))([Xe]4f^(1)5d^(1)6s^(2))`