Decay series

A decay series refers to a sequence of radioactive decay processes where an unstable atomic nucleus transforms into a more stable form. This series occurs when a radioactive isotope decays into another isotope, which may also be unstable, leading to further decay. For example, uranium-238 decays through several steps, ultimately becoming lead-206. Each step involves the emission of particles or radiation, and the process continues until a stable element is formed. Understanding decay series is important in fields like geology, archaeology, and nuclear physics, as it helps date materials and understand radioactive behavior in nature.