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Uranium

Uranium is a silvery-white metallic element that is radioactive and has the chemical symbol U and atomic number 92. It is a heavy metal found in trace amounts in most rocks and ores, primarily in uranium minerals like uraninite. Uranium is most notably known for its use as fuel in nuclear reactors and in the production of nuclear weapons due to its ability to undergo fission—a process where the nucleus of an atom splits into smaller parts, releasing a significant amount of energy. It has several isotopes, with uranium-238 and uranium-235 being the most prevalent. Uranium-235 is fissile and can sustain a nuclear chain reaction, making it essential for nuclear power generation. Uranium is also a key element in the fields of geology, environmental science, and nuclear physics. Its handling and usage are governed by strict regulations due to its radioactive properties and potential health hazards.