Which subatomic particle(s) are found in the nucleus of the atom?

Answer 1

At the first level, protons and neutrons are found, but it turns out, they are actually made up of smaller particles called quarks, of which there are six, but only two types of them are in neutrons and protons. Don't forget the massless, point-like particles called gluons who transfer the strong nuclear force between quarks. Oh yeah, and don't forget about the quark / antiquark based particles generally known as mesons, but specifically called pions and rho-mesons in the nucleus, who transfer the nuclear force between protons and neutrons. There's two each of them. Oops, I almost forgot about neutrinos, an active member of every beta-type nuclear radiation process. There are three flavors of those, and they oscillate between themselves so you have to count all three plus their anti....oh crap, I forgot antiparticles. Go ahead and double all the particles I just listed since they all have, except for the neutral pion, neutral rho meson and gluon, a distinct antiparticle. Did I mention that each of the 12 types of quarks and antiquarks come in three possible states known as color? Whoops

Well, I think that's it.

Oh yeah, Beta decay...in addition to neutrinos you'll find electrons, positrons and the three weak-force carrying bosons, W+, W-, and Z0.

Finally... electrons can annihilate with positrons in the nucleus to make photons.

and the Higgs is probably there.

I have a headache.

Answer 2

The proton and neutron. The proton has a positive charge and the neutron has no charge. The electron orbits the nucleus and has a negative charge.