- The universe is made up of matter particles (protons, neutrons, electrons etc.)
- All matter particles have antimatter counterparts
- Antimatter particles are identical to their matter counterpart but with the opposite charge
- This means if a particle is positive, its antimatter particle is negative and vice versa
- Common matter-antimatter pairs are shown in the diagram below:
- Apart from electrons, the corresponding antiparticle pair has the same name with the prefix ‘anti-’ and a line above the corresponding matter particle symbol
- A neutral particle, such as a neutron or neutrino, is its own antiparticle
You must learn each fundamental particle, its symbol, and its corresponding antiparticles and symbols. Don't let the symbols catch you out in diagrams for this unit.