An elementary particles in Quantum Physics, are the smallest particles which make up everything else. They are the 'fundamental particles'. The particles that make up matter, are called Fermions. These are divided into two categories, Quarks and Leptons.
Frequently Asked Questionsedit
Aren't atoms the smallest?edit
No. Before Quantum Physics, we thought that Atoms were the smallest 'indivisible' particles. But this is wrong, atoms are made of subatomic particles. The electron, is already a fundamental particle, a Lepton. The Protons and Neutrons are made up of combinations of Quarks.