The Standard Model
C h a r g e	Elementary particles and antiparticles							C h a r g e
	Fermions (spin 1/2)			Bosons	Antifermions (spin 1/2)
	Quarks (interact by strong force)			(spin 1)	Antiquarks (interact by strong force)
`+2/3`	1968   2.0 MeV $\strut u$ up	1974   1.29 GeV $\strut c$ charm	1995   172.9 GeV $\strut t$ top	1905   0 eV $\strut \gamma$ photon EM force	172.9 GeV $\strut \bar t$ antitop	1.29 GeV $\strut \bar c$ anticharm	2.0 MeV $\strut \bar u$ antiup	`-2/3`
`-1/3`	1968   4.8 MeV $\strut d$ down	1968   100 MeV $\strut s$ strange	1977   4.2 GeV $\strut b$ bottom	1978   0 eV $\strut g$ gluon strong force	4.2 GeV $\strut \bar b$ antibottom	100 MeV $\strut \bar s$ antistrange	4.8 MeV $\strut \bar d$ antidown	`+1/3`
	Leptons				Antileptons
0	1956   <2.2 eV $\strut \nu_e$ electron neutrino	1962   <0.17 MeV $\strut \nu_\mu$ muon neutrino	2000   <15.5 MeV $\strut \nu_\tau$ tau neutrino	1983   91.2 GeV $\strut Z^0$ Z boson weak force	<15.5 MeV $\strut \bar\nu_\tau$ anti \(\tau\) neutrino	<0.17 MeV $\strut \bar\nu_\mu$ anti \(\mu\) neutrino	<2.2 eV $\strut \bar\nu_e$ anti \(e\) neutrino	0
`-1`	1897   0.511 MeV $\strut e$ electron	1936   105.7 MeV $\strut \mu$ muon	1975   1.777 GeV $\strut \tau$ tau	1983   80.4 GeV $\strut W^\pm$ W boson weak force	1.777 GeV $\strut \bar\tau$ antitau	105.7 MeV $\strut \bar\mu$ antimuon	0.511 MeV $\strut \bar e$ positron	`+1`
0	A new particle, consistent with the Higgs boson, was announced 4th of July 2012 Mass unit GeV is short for GeV/c2 ≈ 1.783×10-24 g			2012   125.3 GeV $\strut H^0$ Higgs boson	The graviton is another (hypothetical) particle that is postulated to mediate the force of gravitation The graviton, if it exists, would be a spin 2 boson			0

	Compound particles and antiparticles
	Hadrons (held together by strong force)		Antihadrons (held together by strong force)
	Baryons (spin 1/2) three quarks	Mesons (spin 1) quark-antiquark	Antimesons quark-antiquark	Antibaryons three antiquarks
`+1`	1917     938.3 MeV $\strut p^+$ proton \(uud\)	1947     139.6 MeV $\strut \pi^+$ pion \(u\bar d\)	139.6 MeV $\strut \pi^-$ antipion \(\bar u d\)	938.3 MeV $\strut p^-$ antiproton \(\bar u\bar u\bar d\)	`-1`
0	1932     939.6 MeV $\strut n^0$ neutron \(udd\)	1947     493.7 MeV $\strut K^0$ kaon \(d\bar s\)	493.7 MeV $\strut \bar K^0$ antikaon \(\bar d\! s\)	939.6 MeV $\strut \bar n^0$ antineutron \(\bar u\bar d\!\bar d\)	0
	\(\vdots\) many more	\(\vdots\) many more	\(\vdots\) many more	\(\vdots\) many more
Protons and neutrons each contain three quarks that are held together by the strong force   \(\implies\) atomic nuclei also held together by the strong force; from atomic nuclei and electrons   \(\implies\) atoms held together by the electro-magnetic force, absorb or emit photons   \(\implies\) periodic table of elements \(\implies\) molecules held together by the electro-magnetic force   \(\implies\) matter, planets, stars, solar systems and galaxies held together by gravitational force
Peter Jipsen, Chapman University, July 2012, information from Wikipedia, symbols by MathJax