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A uranium nucleus ""(92)U^(238) emits an...

A uranium nucleus `""_(92)U^(238)` emits an `alpha` particle and a `beta` - particle in succession. The atomic number and mass number of the final nucleus will be

A

(a) 90233

B

(b) 90238

C

(c) 91238

D

(d) 91234

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The correct Answer is:
D
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