Physics (AS & A Level) · May / June 2025 · Paper 44 · Question 11
9702
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The deuterium nucleus (2 1H) has a mass defect of 0.002 388 u. The helium-4 nucleus (4 2He) has a mass defect of 0.030 377 u. Helium-4 is formed from deuterium in a nuclear reaction that can be represented by the equation 3 2 1H 4 2He + 1 1p + 1 0n.
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11(a)(i)[1]
11(a)(ii)[3]
11(b)(i)[3]
11(b)(ii)[2]
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