chemistry (need some help)
posted by Lauren on .
In a series of decays (hypothetical), the nuclide Ra-227 beomes Pb-203. How many alphas and how many betas are emitted in this series? Give two answers: first, give the number of alpha decays; then, the number of beta decays.
I know that there are 6 alpha decays happening. I just do not get the beta decay part.