Consider the beta decay, , where represents a mercury nucleus in an excited state at energy 1.063 Me — Nuclear Chemistry and Radioactivity Chemistry Question

Question

Consider the beta decay, $\text{Au}^{198} \to \text{Hg}^{198*}$, where $\text{Hg}^{198*}$ represents a mercury nucleus in an excited state at energy 1.063 MeV above the ground state. What can be the maximum kinetic energy of the electron emitted? The atomic masses of $\text{Au}^{198}$ and $\text{Hg}^{198}$ are 197.968 u and 197.966 u, respectively. (1 u = 931.5 MeV)