2 ms·
> other elements ...some of which, too, are pretty nasty: Plutonium-239 → Uranium-235 → Thorium-231 → Protactinium-231 → Actinium-227 → Thorium-227 → Radium-2
by Koshkin 8y ago
> other elements
...some of which, too, are pretty nasty:
Plutonium-239 → Uranium-235 → Thorium-231 → Protactinium-231 → Actinium-227 → Thorium-227 → Radium-233 → Radon-219 → Polonium-215 → Lead-211 → Bismuth-211 → Thallium-207 → Lead-207