Identify the transition element

Options

A. `1 s^(2), 2 s^(2), 2 p^(6), 3 s^(2), 3 p^(6), 4 s^(2)`
B. `1 s^(2), 2 s^(2), 2 p^(6), 3 s^(2), 3 p^(6), 3 d^(2) 4 s^(2)`
C. `1 s^(2), 2 s^(2), 2 p^(6), 3 s^(2), 3 p^(6), 3 d^(10) 4 s^(2) 4 p^(2)`
D. `1 s^(2), 2 s^(2), 2 p^(6), 3 s^(2), 3 p^(6), 3 d^(10) 4 s^(2) 4 p^(1)`

Answer

B

Explanation

We know that transition element are those element which have partially filled d-subshell in their elementary form. Therefore, the genral electronic configuration of d-block elements is `(n - 1) d^(1 -10) ns^(1-2)`.