(a)[1]
State the nuclide notation for this samarium isotope in the form $^{A}_{Z}X$.
(b(i))[2]
Explain how Fig. 6.1 shows that this samarium isotope emits $\alpha$-particles and does not emit $\beta$-particles.
(b(ii))[2]
This samarium isotope decays into an isotope of neodymium (Nd). Write the radioactive decay equation for this process. Include the nucleon and proton numbers for every particle involved.
(c(i))[2]
A baryon consists of three quarks with different flavours. The baryon has a charge of 0. Two of the quarks in the baryon are an up quark and a bottom quark. Determine, in terms of the elementary charge $e$, the charge on the third quark in the baryon.
(c(ii))[1]
State a possible flavour for the third quark in the baryon.