Question
Are the following reactions possible? For each, explain why or why not.
1. $\textrm{U} \to \textrm{Ra} + \textrm{He}$
2. $\textrm{Ra} \to \textrm{Pb} + \textrm{C}$
3. $\textrm{C} \to \textrm{N} + e^- + \bar{\nu_e}$
4. $\textrm{Mg} \to \textrm{Na} + e^+ + \nu_e$
1. No, because of conservation of charge violation.
2. Yes
3. Yes
4. Yes
Solution Video