| Symbol | Composition | Year Discovered | Particle | % Correct |
|---|---|---|---|---|
| e− | elementary (lepton) | 1897 (Thomson) | electron | 97%
|
| u, d, s | elementary model | 1964 (Gell-Mann and Zweig) | quarks | 89%
|
| n | composite (baryon) | 1932 (Chadwick) | neutron | 88%
|
| p | composite (baryon) | 1919 (Rutherford) | proton | 88%
|
| — | elementary (quantum) | 2012 (CERN) | {Higgs} boson | 76%
|
| α | composite (atomic nucleus) | 1899 (Rutherford) | {alpha} particle | 75%
|
| c | elementary (quark) | 1974 | {charm} quark | 68%
|
| γ | elementary (quantum) | 1905 (Einstein) | photon | 66%
|
| b | elementary (quark) | 1977 | {bottom} quark | 65%
|
| μ− | elementary (lepton) | 1936 (Anderson) | muon | 64%
|
| t | elementary (quark) | 1995 | {top} quark | 63%
|
| νe, et al. | elementary (lepton) | 1956 (Cowan and Reines) | neutrinos | 61%
|
| e+, et al. | — | 1932 (Anderson) | {anti}particles | 53%
|
| π | composite (mesons) | 1947 (Lattes, Occhialini and Powell) | pion | 44%
|
| K | composite (mesons) | 1947 | kaon | 32%
|
| W±, Z0 | elementary (quantum) | 1983 (CERN) | {weak} bosons | 28%
|
| Λ0, et al. | composite (baryons) | 1950 (University of Melbourne) | {lambda} baryons | 19%
|
| — | composite | 2019 (CERN) | {penta}quark | 9%
|
| Zc(3900), et al. | composite | 2013 | {tetra}quark | 7%
|