How many subatomic particles are there?

The mainstream theory says that there are 12 fermions + their anti-particles + 4 gauge boson + 1 scalar boson = 29 fundamental sub-atomic particles i.e. excluding the nucleons and the graviton for which there's no evidence. read more

Elementary particles are particles with no measurable internal structure; that is, it is unknown whether they are composed of other particles. They are the fundamental objects of quantum field theory. Many families and sub-families of elementary particles exist. Elementary particles are classified according to their spin. read more

There are two W particles (W+ and W-), one being the antiparticle of the other. That's 30 particles so far. Finally, Malcolm counts the"gluon" as one particle, but I count gluons as 8 different particles. read more

) than a proton, so if this is the dark matter particle then it would not significantly increase the number of particles in the universe. On the other hand, if the dark matter particle is the axion, it may be 1/1000th the mass of a proton (or less) so it could push up the particle count by several powers of 10. read more