. . . . . . . . "An Initial_element is converted into a Final_element via a process of decay, fusion, or fission which changes the number or type of hadrons (protons or neutrons) in the nucleus of the atoms that make up the Element. 5.5 percent of nucleii decay from tritium to He3 in a year ."@en . . . . . . . . . . . . . . "2007-04-02T12:34:57+02:00"^^ . "Nuclear_process" . . . "1926"^^ . . . . . . . . . .