Question

Is $U-235$ Radioactive?

Answer 1

1. A radioactive element that occurs naturally is uranium (chemical symbol: $U$). Uranium is a silvery-white metal after refinement.
2. There are three main naturally occurring isotopes of uranium.
3. One such characteristic of a substance where the emission of powerful subatomic particles occurs spontaneously is radioactivity.
4. A radioactive isotope of uranium is $U-235$.

Hence, $U-235$ is a radioactive uranium isotope.