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1. |
`""_(88)""^(224)Ra` decays by a series emmision of three `beta-` particles and two `alpha-`particles. The end product of X isA. `""_(88)""^(220)X`B. `""_(87)""^(216)X`C. `""_(90)""^(234)X`D. `""_(88)""^(216)X` |
Answer» Correct Answer - b During the emission of `alpha` particle `Zdarr` by 2 units and `Adarr` by 4 units During the emmision of `beta` particle `Zuarr` by 1 unit and A doesn t change |
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