Question

What are two isotopes of uranium? Which can be used to make energy?

Answer 1

`Uranium^235 & Uranium^238`

Explanation:

Only `Uranium^235` can be used to produce energy, but `Uranium^238` is the most abundant variant (99%) of Uranium. Hence uranite (uranium bearing mineral) needs to go through a centrifugal filteration process (Uranium Centrifuge Process) to isolate the `Uranium^235`. `Uranium^238` has a small probability for spontaneous fission or even induced fission with fast neutrons.

There is a third isotope of Uranium called `Uranium^233` which can be produced from natural thorium can also be used by nuclear reactors to generate energy.

Source: https://en.wikipedia.org/wiki/Uranium