Find the electronic configuration of the element that is placed just below the element with atomic number 25 in the same group. 

Options

A. `1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3ď^5`
B. `1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4ď^5`
C. `1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^6`
D. `1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^1 4d^5`

Answer

B