Physics Question from JEE Main 2026 · 24 January, Shift 2

The binding energy for the following nuclear reactions are expressed in $\text{MeV}$.

$${}^{3}_{2}He + {}^{1}_{0}n \rightarrow {}^{4}_{2}He + 20 \, \text{MeV}$$ $${}^{4}_{2}He + {}^{1}_{0}n \rightarrow {}^{5}_{2}He - 0.9 \, \text{MeV}$$

If $X_3, X_4, X_5$ denote the stability of ${}^{3}_{2}He, {}^{4}_{2}He$ and ${}^{5}_{2}He$, respectively, then the correct order is: