The total number of electrons present in all `s` orbitals, all the `p` orbitals, and all the `d` orbitals of cesium ion are, respectively,

Options

A. 8, 26, 10
B. 10, 24, 20
C. 8, 22, 24
D. 12, 20, 22

Answer

B

Explanation

The electronic configuration of `Cs^(+)`(Z=55) is :
`1s^(2)2s^(2) 2p^(6) 3s^(2) 3p^(6)3d^(10)4s^(2)4p^(6)4d^(10)5s^(2)5p^(6)`.
No. of electrons in s-orbitals =10
No. of electrons in p-orbitals = 24
No. of electrons in d-orbitals =20