Answer to Question #35205 in Inorganic Chemistry for Brenda Ortega
Is U-235 U236 U238 isotopes?
U-235, U-236, U-238 are the isotopes of Uranium. U-235 and U-238 are the two primordial isotopes that have long half-life and are found in appreciable quantity in the Earth/s crust, along with the decay product Uranium-234. Uranium-236 is an isotope of Uranium that is neither fissile with thermal neutrons, nor very good fertile material, but is generally considered a nuisance and long-lived radioactive waste. It is found in spent nuclear fuel and in the reprocessed Uranium made from spent nuclear fuel.