1.Previous
3.Next

because it is the only naturally occurring element with a fissile isotope - uranium-235 - present in non-trace amounts. However, because of the low abundance of uranium-235 in natural uranium (which is overwhelmingly uranium-238), uranium needs to undergo enrichment so that enough uranium-235 is present. Uranium-238 is fissionable by fast neutrons and is fertile, meaning it can be transmuted

1.Previous
3.Next