Edexcel GCSE Combined Science · 1SC0
Paper 5, Paper 6
The electron's antiparticle: it has the same mass as an electron but a positive rather than negative charge.
Revise: Atomic models and isotopesA positron is the electron's antiparticle: it has the same mass as an electron but the opposite charge. It is not a normal constituent of an atom.
- Revise: Radiation properties, background and detection
A particle with the same mass as an electron but an equal and opposite positive charge; emitted as beta-plus radiation.