(a(i))[3]
Fluorine-18 ($^{18}_{9}\text{F}$) is an isotope that decays into an isotope of oxygen (O) through the emission of a $\beta^{+}$ particle. Complete the nuclear equation for this decay, including every particle involved. $^{18}_{9}\text{F} \rightarrow$
(a(ii))[1]
During the decay, a quark in the fluorine-18 nucleus changes flavour. State this flavour change. .................... quark to .................... quark.
(b(i))[2]
A hadron has a charge of $-2e$, where $e$ is the elementary charge. State and explain whether the hadron is a meson or a baryon.
(b(ii))[1]
State one possible quark composition for the hadron.