Select the correct answer. Which types of orbitals are found in the principal energy level n = 3? A. s, d B. s, p, d C. s, p D. s, p, f E. s, d, f

The answer is B.

Answer: B. s, p, d

Explanation:

Principle Quantum Numbers: This quantum number describes the size of the orbital. It is represented by n. n = 1,2,3,4 ...

Azimuthal Quantum Number: This quantum number describes the shape of the orbital. It is represented as 'l'. This quantum number is used to describe shape. The value of l ranges from 0 to (n-1). For l = 0,1,2,3 ... the orbitals are s, p, d, f ...

Thus if the value of n = 3, the possible values of l are 0 to (3-1), i. e. 0, 1 and 2.

where l = 0 represents s subshell, l = 1 represents p subshell and l = 2 represents d subshell.

Thus the correct option is B.