(a) Write the basic nuclear process involved in the emission of ${\mathit{\beta }}^{+}$ in a symbolic form, by a radioactive nucleus.
(b) In the reactions given below :
(i) ${}_6^{11}\mathrm{C}\to {}_{\mathrm{y}}^{\mathrm{z}}\mathrm{B}+\mathrm{x}+\mathrm{v}$
(ii) ${}_6^{12}\mathrm{C}+{}_6^{12}\mathrm{C}\to {}_{\mathrm{a}}^{20}\mathrm{Ne}+{}_{\mathrm{b}}^{\mathrm{c}}\mathrm{He}$
Find the values of $\mathit{x},\mathit{y}$ , and $\mathit{z}$ and $\mathit{a},\mathit{b}$ and $\mathit{c}$ .