1.

Complete the following : (1)._(7)N^(14)+ ._(2)He^(4)rarr ._(8)O^(17) + ......"", (2)._(92)U^(235)+ ._(0)n^(1)rarr ._(55)A^(142) +. _(37)B^(92)+ ...... (3)._(29)Cu^(53)rarr ._(28)Ni ^(53) + ......,

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Solution : (1)`._(7)N^(14)+ ._(2)He^(4)rarr ._(8)O^(17) + ._(1)H^(1) ""`, (2)`._(92)U^(235)+ ._(0)n^(1)rarr ._(55)A^(142) +. _(37)B^(92)+ 2 ._(0)n^(1)`
(3)`._(29)Cu^(53)rarr ._(28)Ni ^(53) + ._(+1)e^(0) `,


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