UraniumNatural radioactive element with the atomic number 92. The n... with a lower percentage of U-235 than the 0.7205% contained in natural uraniumUranium in the isotope composition occurring in nature, Natu.... It is produced during uraniumNatural radioactive element with the atomic number 92. The n... isotope separationProcess to separate individual isotopes from isotope mixture.... The normal residual U-235 content in depleted uraniumNatural radioactive element with the atomic number 92. The n... is 0.2%.