`.^(64)Cu(T_(50)=12.8h)` decays `beta^(-)` emission `(38%)`, `beta^(+)` emission `(19%)` and electron capture `(43%)`. Write the decay products and calculate partial half-lives for each of the decay processes.

Answer

`t_(1)=33.68h`
`t_(2)=67.36h`
`t_(3)=29.76h`
Where `t_(1)`, `t_(2)` and `t_(3)` are the parallel half lives for `beta^(-)` emission , `beta^(+)` emission and electron capture processes, respectively.