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Subatomic Particles Quiz

Given the clues, can you name these important subatomic particles within the Standard Model?
Subatomic particles discovered as of February 2020.
Source: Wikipedia
Quiz by
elijahwade
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Last updated: May 23, 2020
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First submittedAugust 14, 2018
Times taken671
Average score57.9%
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Symbol
Composition
Year Discovered
Particle
e
elementary (lepton)
1897 (Thomson)
electron
α
composite (atomic nucleus)
1899 (Rutherford)
alpha particle
γ
elementary (quantum)
1905 (Einstein)
photon
p
composite (baryon)
1919 (Rutherford)
proton
n
composite (baryon)
1932 (Chadwick)
neutron
e+, et al.
1932 (Anderson)
antiparticles
π
composite (mesons)
1947 (Lattes, Occhialini and Powell)
pion
μ
elementary (lepton)
1936 (Anderson)
muon
K
composite (mesons)
1947
kaon
Λ0, et al.
composite (baryons)
1950 (University of Melbourne)
lambda baryons
νe, et al.
elementary (lepton)
1956 (Cowan and Reines)
neutrinos
u, d, s
elementary model
1964 (Gell-Mann and Zweig)
quarks
c
elementary (quark)
1974
charm quark
b
elementary (quark)
1977
bottom quark
W±, Z0
elementary (quantum)
1983 (CERN)
weak bosons
t
elementary (quark)
1995
top quark
elementary (quantum)
2012 (CERN)
Higgs boson
Zc(3900), et al.
composite
2013
tetraquark
composite
2019 (CERN)
pentaquark
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5 Comments
+1
Level 56
Jul 16, 2021
Great quiz, always love to see physics based quizzes. Would it be fair to accept gamma for photons? Especially considering the symbol.
+1
Level 97
Jul 16, 2021
Thanks for the comment. I am glad you enjoyed the quiz.

I appreciate your suggestion regarding 'gamma', but within physics, the 'γ' is used to describe photons as a whole and not merely gamma rays (the 1905 discovery of photons by Einstein should be sufficient to lead to 'photons', while gamma rays—discovered by Rutherford in 1900 and which, admittedly, also use the 'γ' symbol—are not a larger class of elementary subatomic particles).

+1
Level 82
Dec 7, 2021
An alpha particle is not subatomic.
+2
Level 97
Dec 7, 2021
An alpha particle is subatomic in that it is smaller than at atom, being a composite particle (a doubly ionized helium nucleus). It is true that 'alpha particle' is not defined especially rigorously, but for the purposes of this quiz (and Rutherford's discovery/Rutherford and Royds' proof in 1907), an alpha particle is subatomic.
+1
Level 57
May 17, 2026
This quiz might be the best on JetPunk about subatomic particles, and certainly the most educational, due to your historical presentation. Thank you.

I have some suggestions for improvement. First, the standard model includes two particles you've left out:

- tau-minus: elementary(lepton) 1975 Perl

- gluon: elementary(boson) 1978

In two cases, 1905(Einstein) and 1964(Gell-Mann), you're conflating a successful model with experimental discovery. I suggest using only experimental discovery, as there are many other successful models you did not include. So

- gamma: elementary(boson) 1902 Lenard

- u: elementary(quark) 1968

- d: ... 1968

- s: ... 1947

Wikipedia lists discovery of the pi as Chowdhuri and Bose 1942. I've noticed this is a point of cultural pride among some people of South Asian extraction, so I strongly suggest you fix this.

Finally, many physical properties are quantized, so for gamma,W,Z,g,H-zero I suggest restricting their labels to elementary(boson).