Question

An orbital made of four lobes can have the following quantum numbers:

• A. n = 2, l = 2, m = 0
• B. n = 3, l = 1, m = -2
• C. n = 3, l = 2, m = 0
• D. n = 3, l = 3, m = -3

Answer 1

The correct option is C n = 3, l = 2, m = 0

As per Quantum mechanical model,
if the principal quantum number is n, the orbital quantum number is l, the magnetic quantum number as m,
then $0\le l<n$ and $-l\le m\le l$.
Since the orbital has four lobes, it is the d orbital i.e. $l=2$.