Any fissile material would do, but Uranium is the most common.
Uranium (U) Or Plutonium (Pu)
It is Uranium
Uranium
Uranium is usually the element of choice for nuclear fuel. We also like to recover the uranium-235 isotope for fuel if we can. Some reactors use mostly U-235 for fuel, and some use a bit of U-235 in with U-238 for fuel.
When it comes to heavy elements that are used in weapons and in reactors, uranium and plutonium are both candidates. The first atomic bombs were made of uranium, and they are now pretty much made of plutonium. Some special nuclear reactors are powered by plutonium fuel, but most reactors for power generation use (enriched) uranium for fuel. Links are provided to relevant articles posted by our friends at Wikipedia, where knowledge is free.
Uranium (U) Or Plutonium (Pu)
Uranium is a radioactive element used to fuel nuclear reactors. It is a nuclear fuel.
To make fuel rods for nuclear reactors
The most important component is the uranium fuel
We look to the naturally occurring element uranium as a nuclear fuel.
Uranium is the major component of the nuclear fuel in the nuclear energetic reactors. Also United States use uranium for weapons.
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).
No substitute for nuclear power reactors especially if there is no available fossil fuel.
Uranium and/or Plutonium fuel
yes
Nuclear reactors.
Uranium is the main fuel used, but in some countries a mixture of uranium and plutonium is also used (MOX fuel)