Natural radioactive elementChemical base material which cannot be chemically converted ... with the atomic numberNumber of protons in an atomic nucleus. Each chemical elemen... 92. The naturally occurring isotopes are fissionable uranium-235 (0.7205% of natural uraniumUranium in the isotope composition occurring in nature, Natu...), uranium-238 which cannot be fissioned with thermal neutrons (99.2739% of natural uraniumUranium in the isotope composition occurring in nature, Natu...) and the uranium-234, a decayThe spontaneous conversion of a nuclide into another nuclide... product of radioactive decayThe spontaneous conversion of a nuclide into another nuclide... of uranium-238 (0.0056%).
ENS
European Nuclear Society
- About us
- Scientific Resources
- Nuclear Basics
- Nuclear for Climate
- Education, Training & Careers
- Conferences and events
- Our Blog