Question

Consider the following set of quantum numbers.
$\begin{array}{cccc}& \text{n}& \text{l}& m_l\\ \text{A.}& 3& 3& -3\\ \text{B.}& 3& 2& -2\\ \text{C.}& 2& 1& +1\\ \text{D.}& 2& 2& +2\end{array}$
The number of correct sets of quantum numbers is ______

• A. 2
• B. 2.0
• C. 2.00

Answer 1

Answer: (A), (B), (C)

The correct sets of Quantum numbers are,
$\begin{array}{ccc}n=3& l=2& m_l=-2\\ \text{and}n=2& l=1& m_l=+1\end{array}$
l can have values from 0 to $(n–1)$ and $m$ can have values from $–l.....0......+l$
Thus, answer is 2