92-U-235, Uranium
https://sites.google.com/view/isotope-evidence/92-u-235
Uranium Uran
https://da.wikipedia.org/wiki/Uran
https://en.wikipedia.org/wiki/Uranium-235
½-life:
235U 703,8 * 10^6 y
92-U-235, Uranium
https://sites.google.com/view/isotope-evidence/92-u-235
Uranium Uran
https://da.wikipedia.org/wiki/Uran
https://en.wikipedia.org/wiki/Uranium-235
½-life:
235U 703,8 * 10^6 y