What Radionuclide is often used in luminous watches and clocks?

Question

Question: What Radionuclide is often used in luminous watches and clocks?

Options:

1.  Tritium
2.  Carbon-14
3.  Strontium-90
4.  Iodine

Answer 1

1. Tritium

Tritium radionuclide is often used in luminous watches and clocks.