Fundamental Particles
These are the 3 original fundamental particles.
What are protons, neutrons, and electrons?
These are the two families into which subatomic particles are divided.
What are leptons and hadrons?
These are the three quarks that make up a proton.
What are two up quarks and one down quark?
These particles were discovered later and named after Greek letters.
What are pions, kaons, and muons?
These are examples of a lepton and a hadron, respectively.
What is the electron (lepton) and proton (hadron)?
This is the number of quark "flavours" that exist.
What is six?
This was the reason why neutrons, protons, and electrons were considered fundamental.
This is the fundamental force that affects hadrons and leptons.
What is the strong nuclear force?
This is the electric charge of an up quark.
What is +2/3?
This scientific development complicated the original model of fundamental particles.
What is the discovery of many new particles in the 20th century?
This is the meaning of the word "lepton" in Greek.
What is "light" (in mass)?
This is the name for a hadron made of one quark and one antiquark.
What is a meson?
This naming convention was used as more subatomic particles were discovered.
What is using Greek letters to name them?
This is the structural difference between leptons and hadrons.
What is leptons are fundamental particles, while hadrons are made if quarks?
These are the six types of quarks.
What are up, down, charm, strange, top, and bottom?