The atomic number of an element is 35. What is the total number of electrons present in all the p-orbitals of the ground state atom of that element.

Options

A. 6
B. 11
C. 17
D. 23

Answer

C

Explanation

`X_35 = 1s^2, 2s^2 2p^6, 3s^2 3p^6, 4s^2 3d^10 4p^5`.
The total number of electrons in all the p - orbitals = 6 + 6 +5 = 17.