Question

For a given value of quantum number $l$, the number of allowed values of $m$ is given by

• A. $l + 2$
• B. $2l + 2$
• C. $2l + 1$
• D. $l + 1$

Answer 1

Answer: (C)

$2l + 1$

Answer 2

$m = - l$ to $+ l$ including zero.