February/March 2026 Paper 12

2026 · 40 questions · 40 parts · 40 marks

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40Radioactive Decay Nuclear EquationsHard1 mark
Uranium, , decays into radium, , after a sequence of alpha and beta-minus decays. Which row gives the correct number of alpha decays and beta-minus decays?
A23
B32
C20
D30