Chapter 19, Problem 19.18QP

In each pair of isotopes shown, indicate which one you would expect to be radioactive: (a) ${}_{10}^{20}\text{Ne}$ and ${}_{10}^{17}\text{Ne}$, (b) ${}_{20}^{40}\text{Ca}$ and ${}_{20}^{45}\text{Ca}$, (c) ${}_{42}^{95}\text{Mo}$ and ${}_{43}^{92}\text{Tc}$, (d) ${}_{80}^{195}\text{Hg}$ and ${}_{80}^{196}\text{Hg}$, (e) ${}_{83}^{209}\text{Bi}$ and ${}_{83}^{242}\text{Cm}$.