PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation
Problem
In a typical β− decay, a neutron inside a nucleus changes into a proton. Which combination of emitted particles ensures that both charge and lepton number are conserved?
(a) An electron only
(b) An electron and a neutrino
(c) An electron and an antineutrino
(d) A positron and a neutrino