Question

Which is not the permissible subsheel (A) 2d (B) 4f (C) 6p (D) 3s

Answer 1

$ASSALAMUALAIKUM$

As per the quantum theory of the atomic structure the subshells are equal to the value of principal quantum number i.e.,

if n = 1 there will be only one subshell,

if n = 2 there will be two subshells,

i.e., s and p. Hence, there cannot be subshell in 2d.

hence, option (A) is correct.

$INSHAALLAH it will help you!$

$\mathbb{\huge{A.K.}}$

Answer 2

As per the quantum theory of the atomic structure the subshells are equal to the value of principal quantum number i.e., 

if n = 1 there will be only one subshell, 

if n = 2 there will be two subshells,

i.e., s and p. Hence, there cannot be subshell in 2d.

hence, option (A) is correct.