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