Physics (AS & A Level) · May / June 2017 · Paper 42 · Question 12
9702
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One nuclear reaction that can take place in a nuclear reactor may be represented, in part, by the equation 235 92 U + 1 0 n 95 42 Mo + 139 57 La + 21 0 n + …………. + energy Data for a nucleus and some particles are given in Fig. 12.1. nucleus or particle mass / u 139 57 La 138.955 1 0 n 1.00863 1 1 p 1.00728 0 –1 e 5.49 × 10–4 Fig. 12.1
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12(a)[1]
12(b)(i)[3]
12(b)(ii)[3]
12(c)[3]
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