WBCS.LIVE practice question

The radioactive isotope of hydrogen is

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Protium
  2. Deuterium
  3. Tritium
  4. Hydronium

Correct answer and explanation

Correct answer: Tritium

Explanation: āœ… Correct Answer: C) Tritium šŸ“š Explanation: Tritium ($^3\text{H}$) is the rare and only naturally occurring radioactive isotope of hydrogen. Its nucleus contains one proton and two neutrons, giving it an atomic mass of approximately 3. Tritium decays spontaneously by emitting a low-energy beta particle, with a half-life of roughly 12.3 years. The other common isotopes, Protium and Deuterium, are completely stable.