You have now met two kinds of particle. The proton has smaller particles inside it. The electron, as far as any experiment can tell, has none. That difference is worth a name.
Physicists sort every particle by one question: is the particle made of anything smaller?
Start from the two cases you know. A proton is made of smaller particles, the three quarks inside it. An electron is not made of anything smaller.
When a particle is not made of anything smaller, we call it fundamental. The electron is fundamental.
A particle is not made of anything smaller. What do we call it?
When a particle is made of smaller particles, we call it composite. The proton is composite: the quarks inside it are its smaller parts.
A particle is made of smaller particles. What do we call it?
A particle is found to be made of two smaller particles. Is it fundamental or composite?
The particle is made of smaller particles.
A particle made of smaller particles is composite.
It is composite.
Type the name for a particle that is not made of anything smaller.
Which statement uses the two particle names correctly?
Physicists call the electron fundamental. Which experimental result is that statement based on?
A newly discovered particle contains two smaller particles. What do physicists call such a particle?