(a(i))[1]
State the name of the additional lepton emitted in the decay.
(a(ii))[2]
Determine the nucleon number and the proton number of the nucleus produced by the decay.
(a(iii))[1]
During the decay, the quark composition of a nucleon in the sodium-22 nucleus changes. Describe the change in the nucleon’s quark composition.
(b(i))[1]
A baryon is made up of quarks that have the same flavour (type). The charge of the baryon is $-2e$, where $e$ is the elementary charge. Calculate, in terms of $e$, the charge of each quark.
(b(ii))[1]
State one possible flavour (type) of the quarks.