Question

an electron in an atom is in the n = 1 and l = 0 quantum level. part 1 of 2 what are all of the possible values of l at n = 1? l = part 2 of 2 what are all of the possible values of m_l that it can have? m_l =

Explanation:

Step1: Recall angular - momentum quantum number rule

The angular - momentum quantum number $l$ has values ranging from $0$ to $n - 1$. Given $n = 1$, then $l$ can only be $0$ since $n-1=1 - 1=0$.

Step2: Recall magnetic quantum number rule

The magnetic quantum number $m_l$ has values ranging from $-l$ to $+l$. Since $l = 0$, then $m_l=0$.

Answer:

Part 1 of 2:
$l = 0$
Part 2 of 2:
$m_l=0$