• Actinide (category CS1 German-language sources (de))
    explosion products, but no isotopes with mass number greater than 257 could be detected, despite predictions that such isotopes would have relatively long...
    130 KB (11,594 words) - 05:53, 24 March 2024
  • Thumbnail for Uranium
    Uranium (section Isotopes)
    4.5 billion years for different isotopes, making them useful for dating the age of the Earth. The most common isotopes in natural uranium are uranium-238...
    110 KB (12,403 words) - 09:40, 16 April 2024
  • Thumbnail for Natural nuclear fission reactor
    isotopiques rencontrées dans l'uranium du Gabon", the second "Sur l'existence dans un passé reculé d'une réaction en chaîne naturelle de fissions, dans le gisement...
    25 KB (3,304 words) - 14:43, 20 May 2024
  • Francis Perrin (physicist) (category CS1 German-language sources (de))
    sections efficaces des isotopes fissiles pour les neutrons thermiques (1955)/International values of cross sections of fissil isotopes for thermic neutrons...
    9 KB (867 words) - 10:02, 24 April 2024
  • Thumbnail for Discovery of nuclear fission
    Discovery of nuclear fission (category CS1 German-language sources (de))
    later wrote, "seemed to be whether Fermi had found isotopes of transuranian elements, or isotopes of the next-lower element, protactinium. At that time...
    98 KB (12,318 words) - 13:21, 5 March 2024
  • Thumbnail for Thorium
    Thorium (category CS1 German-language sources (de))
    ignite in air when finely divided. All known thorium isotopes are unstable. The most stable isotope, 232Th, has a half-life of 14.05 billion years, or about...
    136 KB (15,902 words) - 07:42, 19 May 2024
  • Thumbnail for Ellen Gleditsch
    establishing the half-life of radium and helping demonstrate the existence of isotopes. She was Vice President of the Norwegian Association for Women's Rights...
    14 KB (1,551 words) - 16:59, 4 March 2024
  • video L'Adg du CREN-K/Unikin compte édifier l'opinion sur l'utilité de l'uranium de la République démocratique du Congo" (in French). digitalcongo.net...
    13 KB (1,565 words) - 16:23, 7 March 2024
  • Discovery of chemical elements (category CS1 German-language sources (de))
    Annalen. 2: 387–403. E.-M. Péligot (1842). "Recherches Sur L'Uranium". Annales de chimie et de physique. 5 (5): 5–47. "Titanium". Los Alamos National Laboratory...
    131 KB (4,821 words) - 19:14, 4 May 2024
  • Thumbnail for Frisch–Peierls memorandum
    Frisch–Peierls memorandum (category CS1 German-language sources (de))
    "Calcul relatif aux conditions éventuelles de transmutation en chaine de l'uranium". Comptes rendus de l'Académie des sciences (in French). 208: 1394–1396...
    28 KB (3,857 words) - 06:50, 25 March 2024