The Uranium Decay Series refers to a sequence of radioactive decay processes that begin with the isotope Uranium-238 and end with stable isotopes, such as Lead-206. During this series, Uranium-238 undergoes a series of transformations, emitting particles and radiation, which results in the formation of various intermediate isotopes, including Radium and Radon. Each step in the decay series involves the emission of alpha or beta particles, leading to the creation of new elements. This process can take millions of years, and the half-life of each isotope varies significantly. Understanding the Uranium Decay Series is crucial in fields like geology, nuclear energy, and environmental science.