24.What is the total number of allowed orbitals in a shell, if principal quantum number is n? [A] n [B] 2n [C] n2 [D] n3 Show Answer
The number of orbitals in a shell is the square of the principal quantum number: 12 = 1, 22 = 4, 32 = 9. There is one orbital in an s subshell (l = 0), three orbitals in a p subshell (l = 1), and five orbitals in a d subshell (l = 2). The number of orbitals in a subshell is therefore 2(l) + 1.
