Use decay equations, using nuclide notation, to show the emission of α-particles, β-particles and γ-radiation

Explain how the type of radiation emitted and the half-life of the isotope determine which isotope is used for applications including: (a) household fire (smoke) alarms (b) irradiating food to kill bacteria (c) sterilisation of equipment using gamma rays (d) measuring and controlling thicknesses of materials with the choice of radiations used linked to penetration and absorption (e) diagnosis and treatment of cancer using gamma rays

Explain what is meant by an isotope and state that an element may have more than one isotope