Q. The number of orbitals present in the shell with $n = 4$ is
A) 16
B) 8
C) 18
D) 32
Explanation
(a)
The number of orbitals in an orbit (or shell) $= n^{2}$
where, $n =$no. of orbit or shell
Given, $n = 4$
∴ No. of orbitals in the 4th shell =$(4)^{2}$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = 16$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.