How many, in total, subatomic particles do we know of so far?

Let's count... There are three pairs of quarks - called generations - the (u,d) pair, the (c,s) pair, and the (t,b) pair. Six "flavors" of quarks. Within a pair, the flavor of quark can flip up and down as it pleases, as long as charge is conse... read more

17 is a common answer. However, I would say there are 37 fundamental subatomic particles in total. It depends on how they are counted. These are"elementary particles". They are not made of simpler units, as far as we know. There are a lot more (well over 200 found so far) if you include those that are"composite particles". Many of them are unstable. read more

In short, we do not know how many fundamental particles there are. The number of particles in the Standard Model is probably the least amount of particles that could exist in the universe. In the Standard Model, there are 6 leptons, 6 quarks, 4 bosons, and 1 Higgs Boson with a total of 17 particles. read more

Subatomic particles are the individual protons, neutrons and electrons that make up the composition of atoms. With the help of the periodic table of elements, we can calculate how many subatomic particles there are in a given atom. Protons and neutrons are found within the nucleus of an atom while electrons surround the nucleus. read more