## Question

###### Complete the following radioactive decay formulas: a) $^{12}_{5} \mathbf{B} \rightarrow ?+\mathbf{e}^{-}+\overline{\nu}$ b) $^{234}_(90) \mathrm{Th} \rightarrow_{88}^{230} \mathrm{Ra}+?$ c) $? \rightarrow^{14}_{7} \mathrm{N}+\mathrm{e}^{-}+\overline{\nu}$

Complete the following radioactive decay formulas: a) $^{12}_{5} \mathbf{B} \rightarrow ?+\mathbf{e}^{-}+\overline{\nu}$ b) $^{234}_(90) \mathrm{Th} \rightarrow_{88}^{230} \mathrm{Ra}+?$ c) $? \rightarrow^{14}_{7} \mathrm{N}+\mathrm{e}^{-}+\overline{\nu}$

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