A-LevelPhysicsParticle physicsOct/Nov 2018Paper 2 Q86 Marks
(a) In the following list, underline all particles that are leptons. antineutrino positron proton quark (b) A stationary nucleus of magnesium-27, ²⁷₁₂Mg, decays by emitting a β⁻ particle and γ radiation. An incomplete equation to represent this decay is ²⁷₁₂Mg → X + β⁻ + γ.
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