Multiple choice

Tritium nucleus consists of

  1. one proton and two neutrons

  2. two neutrons and two protons

  3. two protons and one neutron

  4. one neutron and one proton

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tritium (hydrogen-3 or ³H) is a radioactive isotope of hydrogen consisting of one proton and two neutrons in its nucleus. It is the heaviest naturally occurring hydrogen isotope, with deuterium (²H) having one proton and one neutron, and protium (¹H) having just one proton.