The isotope bismuth-191 undergoes alpha decay. Write the reaction equation and determine the identity of the daughter nucleus. 191 Bi - 83 187 TI + 81 4 Не 2. 191 195. TI + Bi - 81 Не 2 83 191 Bi - 83 189 TI + 81 4 Не 2 191 Bi - 83 195 At + 85 4 Не 191 Bi - 83 187 At + 4 Не 2 85

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