(a)[3]
Complete Table 7.1 so that the charges, expressed in terms of the elementary charge $e$, are shown for each of the quark and antiquark flavours listed.
(b(i))[1]
State the name of the class (group) of fundamental particles that includes baryons and mesons.
(b(ii))[2]
Compare baryons and mesons in terms of their constituent particles.
(c)[2]
Describe $\beta^+$ decay in terms of the fundamental particles involved.