Cn-235 is a synthetic element that belongs to the group of actinides in the periodic table. It is a radioactive isotope of californium and is produced in nuclear reactors or through particle accelerators. Cn-235 has a relatively short half-life, making it unstable and not found naturally in the environment. Due to its radioactive properties, Cn-235 has potential applications in nuclear research and medicine. Scientists study its behavior and interactions to better understand the characteristics of heavy elements and their possible uses in various fields, including energy production and medical imaging.