Outer electronic configuration of Gd (atomic no: 64) is-

Options

A. `4f^(8)5d^(0)6s^(2)`
B. `4f^(4)5d^(4)6s^(2)`
C. `4f^(7)5d^(1)6s^(2)`
D. `4f^(3)5d^(5)6s^(2)`

Answer

C

Explanation

`Gd(64):[Xe]4f^(7)5s^(2)5p^(6)5d^(1)6s^(2)`. So the outer electronic configuration will be: `4f^(7)5d^(1)6s^(2)`.