Synonym for radionuclide. of hydrogen with two neutrons and a Elementary particle with a positive electrical elementary ch... in the Positively charged nucleus of an atom. Its diameter amounts .... Tritium is used e.g. in the manufacture of luminous paint, as an Element or compound made radioactive for easy tracing in bio... in Radionuclide added to identify substances to allow examinati... tests and as a See 'nuclear fuel'. in controlled Formation of a heavy nucleus from lighter nuclei releasing e... experiments. Tritium is a beta emitter (Eßmax: 18 Kiloelectron volt; 1 keV = 1,000 eV; See 'Electron volt'.) with a The period during which half of the nuclei decay in a quanti... of 12,323 years.