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  • In the uranium radioactive series, the initial nucleus is <img alt="{ }_{92} \mathrm{U}^{238}" src="https://entrancecorner.oncodecogs.com/gif.latex?%7B%20%7D_%7B92%7D%20%5Cmathrm%7BU%7D%5E%7B238%7D

In the uranium radioactive series, the initial nucleus is { }_{92} \mathrm{U}^{238}and that the final nucleus is { }_{82} \mathrm{~Pb}^{206} . When uranium nucleus decays to lead, the number of \alpha articles and  \beta particles emitted are

Option: 1

8 \alpha, 6 \beta


Option: 2

6 \alpha, 7 \beta


Option: 3

6 \alpha, 8 \beta


Option: 4

1 \alpha, 1 \beta


Answers (1)

best_answer

Let no. of \alpha− particles emitted be x and no. of \beta particles emitted be y.

Diff. in mass no. 4 x=238-206=32 \Rightarrow x=8

Diff. in charge no. 2x – 1y = 92 – 82 = 10

16 – y = 10,

y = 6

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Sayak

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