Uranium is the most used nuclear fuel. Plutonium can also be used, but it has to be separated from used uranium fuel
Uranium
Uranium is a solid metal, natural chemical element with 3 natural isotopes, radioactive, with the atomic number 92, used as fuel in nuclear reactors and nuclear weapons.
All nuclear fuels contain radioactive elements.
Nuclear
Uranium is a natural chemical element, solid, metal.Uranium is largely used as nuclear fuel in nuclear reactors to deliver energy (electricity or heat).
Uranium is a radioactive element used to fuel nuclear reactors. It is a nuclear fuel.
Petroleum and uranium can be used as fuels.
Petroleum is a fossil fuel, containing many organic compounds; burning of petroleum release thermal energy. Uranium is a radioactive metal; fission of uranium release a great quantity of nuclear energy.
Uranium
Plutonium is a chemical element, radioactive, solid, metal, artificial (but exist also as a natural element in extremely low concentrations in uranium ores). Plutonium is essential for nuclear reactors (as fuel) and for nuclear weapons (as explosive).
Uranium
Uranium ia a natural metal, a radioactive chemical element. Uranium is used as a nuclear fuel. Petroleum is a complex of organic compounds. Petroleum is a fossil fuel.