(a)[3]
The nuclide notation for plutonium-238 is $^{238}_{94}\text{Pu}$. Describe the structure and composition of a neutral atom of plutonium-238.
(b(i).1)[1]
State how the ionising effect of beta-particles is compared with the ionising effect of alpha-particles.
(b(i).2)[1]
State how the ionising effect of beta-particles compares with the ionising effect of gamma-rays.
(b(ii))[2]
State two precautions that are used when radioactive substances are transported safely.