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  1. Tritium - Wikipedia

    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 12.32 years.

  2. Radionuclide Basics: Tritium | US EPA

    Jan 22, 2026 · Tritium is a hydrogen atom that has two neutrons in the nucleus and one proton. It is radioactive and behaves like other forms of hydrogen in the environment. Tritium is produced …

  3. How Rare Is Tritium and Where Does It Come From?

    Sep 1, 2025 · Tritium is a rare radioactive form of hydrogen, existing in extremely small quantities both naturally and through human production. This scarcity influences its applications and the careful …

  4. Facts about tritium

    Tritium is a radioactive isotope of hydrogen. It has the same number of protons and electrons as hydrogen but has 2 neutrons, whereas regular hydrogen does not have any. This makes tritium …

  5. Tritium | Radioactive, Hydrogen, Decay | Britannica

    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 …

  6. 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. Like ordinary water, water containing tritium - …

  7. Tritium is a prospective fuel in the effort to develop commercially viable nuclear fusion reactors. Tritium is also a critical component in modern nuclear weapons, and an inventory of tritium is maintained for …

  8. Tritium: Facts and Safety - Defense Centers for Public Health ...

    Jan 27, 2026 · While most people are exposed to very low levels of Tritium daily, it's important to understand the potential risks associated with the military's use of Tritium, and the applicable safety …

  9. Frequently Asked Questions About Liquid Radioactive Releases

    Tritium (H-3) is a weakly radioactive isotope of the element hydrogen that occurs both naturally and during the operation of nuclear power plants. Tritium has a half-life of 12.3 years and emits a weak …

  10. Tritium is a radioactive isotope of the element hydrogen. What are the properties of tritium? Tritium is radioactive and has a half-life of about 12.5 years, which means that half of the radioactive atoms will …