# Parity of states

1. Oct 25, 2009

### Mattofix

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

Which of the following states have odd parity?

a. 2p m=0
b. 2p m=1
c. 26f m=0
d. 2s

3. The attempt at a solution

Knowing the wavefunctions for a,b, and d, i think that all of them have odd parity. What about the 26f m=0 state?

2. Oct 25, 2009

### gabbagabbahey

I'd recommend you write down the values of $n$, $m$ and $\ell$ for each of those orbitals, and then use those to deduce the form of each wavefunction, and then see what happens to each one under the parity transformation.

$$\psi_{n\ell m}(r,\vartheta,\varphi) \propto e^{- \rho / 2} \rho^{\ell} L_{n-\ell-1}^{2\ell+1}(\rho) \cdot Y_{\ell}^{m}(\vartheta, \varphi )$$