Physics (AS & A Level) · Oct / Nov 2019 · Paper 23 · Question 7
9702
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The question as text
A stationary nucleus of a radioactive isotope X decays by emitting an α-particle to produce a nucleus of neptunium-237 and 5.5 MeV of energy. The decay is represented by X 23 9 7 3Np + α + 5.5 MeV.
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7(a)[2]
7(b)[1]
7(c)(i)[2]
7(c)(ii)[2]
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