Weapons-grade uranium is

Question

Quizplus · Accepted Answer

Weapons-grade uranium is highly enriched with U-235, which is the fissile isotope responsible for the chain reaction in a nuclear weapon. Uranium with less than 20% U-235 is considered low-enriched and is used for nuclear fuel in power plants. Uranium with 20-90% U-235 is considered highly enriched and can be used in research reactors or, in the case of 90% U-235, for nuclear weapons. Therefore, the only choice that fits the definition of weapons-grade uranium is C, which is 90% U-235.

Weapons-Grade Uranium Is