A nucleus of the nuclide $^{228}_{89}\text{Ac}$ undergoes decay by releasing a beta particle. This nuclear equation shows the process. $^{228}_{89}\text{Ac} \rightarrow ^{X}_{Y}\text{Th} + \beta$ Which combination of values for $X$ and $Y$ is correct?
Physics 9702 · AS & A Level · Atoms, nuclei and radiation