Protons, neutrons, and electrons are all subatomic particles, meaning they are smaller than an atom. Here's a breakdown of their types:

* Protons are baryons. Baryons are a type of hadron, which are composite particles made up of quarks. Protons consist of two up quarks and one down quark.

* Neutrons are also baryons. They consist of one up quark and two down quarks.

* Electrons are leptons. Leptons are fundamental particles, meaning they are not made up of smaller particles. They belong to a family of particles that includes muons and tauons.

Let me know if you'd like more details about any of these types!