Class started with a review of nuclear terms. Nucleons, atomic number, atomic mass,and radioactivity. From the definition of radioactivity, a chart of the particles and rays which are emitted by the process was set up. The chart included particle name, symbol, charge, and penetrating power. Each particle was then individually examined, and the effect it has on the nucleus when emitted discussed. The reason for the transmission of the particle, and the origin of the beta particle was discovered through a series of questions.