Under certain circumstance , a nucleolus can decay by emitting a particle more massive than an $\alpha$ particle . Consider the following : $_{88}Ra^{223} \to _{86} Rn ^{219} +_2 He ^{14}$ Calculate the Q value for this decay and determine if it energetically possible .

Question

$\begin{array}{1 1} 59.8\;Mev\;Possible \\ 5.98\;Mev\;Possible \\ -59.8\;Mev\;not\;Possible \\ -5.98\;Mev\;not\;Possible \end{array}$