# Parity and total angular momentum

1. May 31, 2015

### gdonoso94

Hi,

I'd like to know how to calculate parity and total angular momentum of nuclei which have even Z and even N and also Z and N are magic numbers, such as 8O8 or 20Ca20 (the number before the element is Z and the after one is N).

I don't know how to insert LaTeX formulas.

Thank you in andvance

2. May 31, 2015

### Staff: Mentor

For even/even nuclei, all pairs cancel each other, so you always have 0+ in the ground state.

3. May 31, 2015

### gdonoso94

Thanks for your reply. I knew that, but I don't understand why orbital angular momentum is 0, because you have nucleons, for example in p-shell... I don't know if I have explained me...