Atomic Structure

1 The Structure of an Atom Describe the structure of an atom including the nucleus, protons, neutrons and electrons. Spec 6.4.1.1 2 Mass Number, Atomic Number and Isotopes Define atomic number, mass number and isotopes and interpret nuclear notation. Spec 6.4.1.2 3 Development of the Model of the Atom Describe how the model of the atom developed from solid sphere to nuclear model. Spec 6.4.1.3 4 Radioactive Decay and Nuclear Radiation Describe alpha, beta and gamma radiation, their properties and uses and dangers. Spec 6.4.2.1 5 Nuclear Equations Write and balance nuclear equations for alpha and beta decay. Spec 6.4.2.2 6 Half-Lives and Radioactive Decay Define half-life, calculate remaining activity and explain the random nature of decay. Spec 6.4.2.3 7 Radioactive Contamination Distinguish contamination from irradiation and explain the hazards and precautions for each. Spec 6.4.2.4 8 Background Radiation Describe sources of background radiation and explain why it must be considered in measurements. Spec 6.4.3 (physics only) 9 Uses of Nuclear Radiation Describe the uses of alpha, beta and gamma radiation in medicine and industry. Spec 6.4.4 (physics only) 10 Nuclear Fission Describe nuclear fission, chain reactions and the basic operation of a nuclear reactor. Spec 6.4.5.1 (physics only) 11 Nuclear Fusion Describe nuclear fusion, why it requires extreme conditions and its potential as an energy source. Spec 6.4.5.2 (physics only)