Loading…
Loading…
GCSE Combined Science · key term
A fast-moving electron emitted from an unstable nucleus.
Used by Edexcel
Paper 5, Paper 6
Revise: Radiation properties, background and detectionUnstable nuclei can emit alpha particles, beta-minus particles, beta-plus particles, gamma rays and neutrons. An individual nucleus does not necessarily emit all these types.
A beta-minus particle is emitted from the nucleus; it is not an electron lost from an atomic shell.
Create a free account to read GCSE Combined Science revision notes for your exam board and track your progress.