2 + 3 = 5 $$2 + 3 = 5$$ $4_{1}^{1}\textrm{H}\ \rightarrow \ _{1}^{4}\textrm{He}\ +\ 2e^{+}\ +\ 2\gamma \ + {\color{Red} energia}\ (24,68\ MeV)$ $$ $ $