Radiochemistry is the study of radioactive materials and their chemical properties. It involves understanding how these materials behave in different chemical reactions and how they interact with other substances. This field is essential for applications in medicine, energy, and environmental science. Researchers in radiochemistry often work with isotopes, which are variants of elements that have different numbers of neutrons. These isotopes can be used in various applications, such as nuclear medicine for diagnosing and treating diseases, or in nuclear power for generating energy.