Particles: Which of the following particles are leptons? (There may be more than one correct choice.)
A) positron
B) muon
C) π-meson
D) neutron
E) electron

Question

Quizplus · Accepted Answer

Leptons are a family of elementary particles that include the electron, muon, and their antiparticles, such as the positron (the antiparticle of the electron). The π-meson and neutron are not leptons; π-mesons are mesons (a type of hadron), and neutrons are baryons (also a type of hadron).

Particles: Which of the Following Particles Are Leptons? (There May