Question

Principal quantum number of an atom is related to the

• A. orbital angular momentum
• B. spin angular momentum
• C. size of the orbital
• D. orientation of the orbital in space

Answer 1

Answer: (C)

size of the orbital

Answer 2

Principle Quantum number ( $n$ ) represent the name, size and energy of the shell to which the electron belongs. Higher the value of ' $n$ ' greater is the distance of the shell from the nucleus.