Nuclear Chemistry - Result Question 8
8. If uranium (mass number 238 and atomic number 92) emits an $\alpha$-particle, the product has mass number and atomic number
(1981, 1 M)
(a) 236 and 92
(b) 234 and 90
(c) 238 and 90
(d) 236 and 90
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Answer:
Correct Answer: 8. (b)
Solution:
- The nuclear reaction is
$ { } _{92} U^{238} \longrightarrow{ } _2 He^{4}(\alpha)+{ } _{90} Th^{234} $
BETA
