1.

Number of alpha - particles produced during the decay process of U - 235 to Pb - 207

Answer»


Solution :`""_(92) U^(235) to ""_(82) PB^(207) + a ( ""_(2) He^(4)) + b (""_(-1) beta^(0)) , a = (235 - 207)/(4) = (28)/(4) = 7 alpha`


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