The atomic number of an element is 35. What is the toal 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)`
Total no. of `e^(-)` is all p-orbitals = 6 + 6 + 5 = 17.