(a(i))[1]
ought to be stored.
(a(ii))[1]
ought to be handled.
(b)[3]
Fill in the table below for three types of emission from radioactive sources. Columns: type of emission; nature; range in air; absorbed by. Some entries are already supplied: electromagnetic radiation - several km; helium nucleus - 0.2 mm paper; electron.
(c(i))[1]
State the radiation type released when an americium nucleus ($^{241}_{95}\text{Am}$) changes into a neptunium nucleus ($^{237}_{93}\text{Np}$).
(c(ii))[1]
State the kind of radiation given off when a phosphorus nucleus ($^{32}_{15}\text{P}$) decays into a silicon nucleus ($^{32}_{16}\text{Si}$).