Q. The total number of atomic orbitals in fourth energy level of an atom is
A) 4
B) 8
C) 16
D) 32
Explanation
[Solution from source] The number of orbitals in shell n is n². For n = 4 (4s, 4p, 4d, 4f: 1 + 3 + 5 + 7) this is 16 orbitals. 32 is the maximum number of electrons (2n²), not orbitals. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.