Which of the following belongs to d-block?

Options

A. `[Rn]6d^(2)7s^(2)`
B. `[Xe]4f^(1)5d^(1)6s^(2)`
C. `[Xe]4f^(14)5d^(1)6s^(2)`
D. `[Xe]5d^(1)6s^(2)`

Answer

D

Explanation

Last electron in `[Xe]5d^(1)6s^(2)` goes to d-orbitals of last but one shell.