Uranium is a dense, silvery-white metal that is primarily known for its use as fuel in nuclear reactors. It is a key element in the production of nuclear energy, which provides a significant source of electricity worldwide. Uranium is naturally radioactive, and its isotopes, particularly Uranium-235, are crucial for sustaining nuclear fission reactions. In addition to its energy applications, uranium has historical significance in the development of nuclear weapons. The discovery of uranium's properties led to advancements in both energy production and military technology. Today, uranium mining and processing are important industries, with countries like Kazakhstan and Canada being major producers.