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Grade upto college level Modern Physics

A uranium nucleus (atomic number 92, mass number 238 ) emits an alpha particle and the resultant nucleus emits β – particle. What are the atomic number and mass number of the final nucleus.
(i) Atomic number =
(ii) Mass number =

Profile image of Shane Macguire
12 Years agoGrade upto college level
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1 Answer

Profile image of Rinkoo Gupta
12 Years ago
92U238-->90Th234+2He4
90Th234-->92U234+ 2β
Thus the atomic number of final nucleus=92 and mass number is 234.
Thanks & Regards
Rinkoo Gupta
AskIITians Faculty

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