# Homework Help: Orbital angular momentum possible values of an electron in a hydrogen atom

1. Dec 4, 2012

### Ezequiel

1. The problem statement, all variables and given/known data

What are the orbital angular momentum possible values for an electron in a hydrogen atom with a principal quantum number n = 3?

2. Relevant equations

$L = \sqrt{l(l+1)}\hbar$

3. The attempt at a solution

Possible values for l are 0, 1, 2.

So, substituting these in the equation above I get: 0, √2$\hbar$, √6$\hbar$.

2. Dec 7, 2012

### BruceW

yep, that looks right.

3. Dec 7, 2012

### Ezequiel

Thank you again :)