Question

Naturally occuring uranium u-238 is not fissionable why

Answer 1

Uranium-238. Uranium-238 (238U or U-238) is the most common isotope ofuranium found in nature, with a relative abundance of 99%. ... U cannot support a chain reaction because inelastic scattering reduces neutron energy below the range where fast fission of one or more next-generation nuclei is probable.