This document discusses different types of nuclear radiation and radioactive decay. It begins by defining radioactivity and radiation, and describes three main types of radiation: alpha, beta, and gamma. It then covers five types of radioactive decay: alpha particle production, beta particle production, gamma production, positron production, and electron capture. For each type of decay, it provides the nuclear equation format and explains how the atomic and mass numbers change. The document also discusses bombardment reactions and provides examples of bombardment with different particles.