Radium-226 is represented by the symbol 88226Ra^{226}_{88}\text{Ra}88226Ra. This isotope is radioactive and decays to radon by emitting an α\alphaα-particle.
Which nuclide is produced by this decay?
86222Rn^{222}_{86}\text{Rn}86222Rn
87226Rn^{226}_{87}\text{Rn}87226Rn
89226Rn^{226}_{89}\text{Rn}89226Rn
90230Rn^{230}_{90}\text{Rn}90230Rn
120 exam-style questions on CIE IGCSE Physics 5.2.3a Radioactive decay. Each one has a worked solution and a mark scheme showing where the marks go.