Question

Which set of quantum number are not possible?

• A. n = 3, l = 2, m = 0, $s=-\frac{1}{2}$
• B. n = 3, l = 2, m = -2, $s=-\frac{1}{2}$
• C. n = 3, l = 3, m = -3, $s=-\frac{1}{2}$
• D. n = 3, l = 0, m = 0, $s=-\frac{1}{2}$

Answer 1

The correct option is C n = 3, l = 3, m = -3, $s=-\frac{1}{2}$

Principal quantum number = n
Azimuthal quantum number = l
Magnetic quantumnumber = m
spin quantum number = s
For n , l ranges from 0 to $l-1$
For l, m ranges from $-lto+l$
So, for n = 3, l =3 is not possible