Tritium sights. Tritium (from Ancient Greek τρίτος (trítos) 'third') or hydrogen-3 (symbol T or 3H) is a rare and radioactive isotope of hydrogen with a half-life of 12. Tritium is produced naturally in the upper atmosphere and as a byproduct of nuclear fission. Jan 30, 2026 · Tritium, (T, or 3H), the isotope of hydrogen with atomic weight of approximately 3. Its nucleus, consisting of one proton and two neutrons, has triple the mass of the nucleus of ordinary hydrogen. Tritium is a prospective fuel in the effort to develop commercially viable nuclear fusion reactors. Like ordinary water, water containing tritium - or tritiated water - is colorless and odorless. 32 years. This scarcity influences its applications and the careful management required for its use. . Tritium (from Ancient Greek τρίτος (trítos) 'third') or hydrogen-3 (symbol T or 3H) is a rare and radioactive isotope of hydrogen with a half-life of 12. It has the same number of protons and electrons as hydrogen but has 2 neutrons, whereas regular hydrogen does not have any. It is radioactive and behaves like other forms of hydrogen in the environment. Jan 22, 2026 · Tritium is a hydrogen atom that has two neutrons in the nucleus and one proton. This makes tritium unstable and radioactive. Sep 1, 2025 · Tritium is a rare radioactive form of hydrogen, existing in extremely small quantities both naturally and through human production. Tritium is a radioactive isotope of hydrogen. Although tritium can be a gas under controlled conditions, its most common form is liquid, because tritium, like hydrogen, reacts with oxygen to form water. Tritium is also a critical component in modern nuclear weapons, and an inventory of tritium is maintained for this purpose. rln zfl yhk oes sgn ryw fcp sob paq ror lve wtl ceu scl hpk