`._(92)U^(238)` is a neutral `alpha-` emitter. After `alpha-` emission, the residual  nucleus
Channel: Doubtnut
Date: 02/08/2020

`._(92)U^(238)` is a neutral `alpha-` emitter. After `alpha-` emission, the residual  nucleus callled `UX_(1)` in turns  emits `a beta^(-1)` particle  to produce  another  nucleuis `UX_(2)` Find out the atomic and mass numbers  of `UX_(1)` and `UX_(2)`. Also if uranium  belongs to `III gp` to which  group `UX_(1)` and `UX_(2)` belong.