Which set of quantum numbers cannot occur together to specify an orbital?
n=3,l=2,ml=0
n=4,l=3,ml=0
n=2,l=0,ml=0
n=3,l=2,ml=3
2 Answers

n = 3, l = 2, ml = 3 is not possible.
The range for ml is between l to +l.

The last set is no good because the absolute value of m_l cannot exceed the azimuthal quantum number (2 in this case).