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Melissa
Protons and neutrons are not fundamental because they are made up of things called quarks Things that are fundamental cannot be broken down into smaller pieces For every particle, there is a corresponding antiparticle or antimatter When particles and antiparticles meet they annihilate into pure energy Particles and antiparticles have opposite charges, the same mass, and are affected by gravity in the same way Why is there so much more matter than antimatter in the universe? There are 6 types of quarks: Up, down, charm, strange, top, bottom Quarks have fractional electrical charge Hadrons - composite particles of quarks : Baryons, any hadron made of three quarks; Mesons, contain one quark and one antiquark
Brenden
4 Elementary Particles: up quark, down quark, electron, and neutrino. Electrons and neutrinos are called leptons. For every particle there is an Anti-Particle.
