What is "hydrogen has three isotopes 1h?

Here's the information about hydrogen isotopes:

Hydrogen indeed has three naturally occurring isotopes:

  • Protium (¹H): This is the most common isotope of hydrogen. Its nucleus consists of only one proton. It doesn't have any neutrons. You can find more about <a href="https://www.wikiwhat.page/kavramlar/Protium">Protium</a> here.

  • Deuterium (²H or D): Deuterium has one proton and one neutron in its nucleus. It's also a stable isotope. Heavy water, used in some nuclear reactors, is made with deuterium instead of protium. Learn more about <a href="https://www.wikiwhat.page/kavramlar/Deuterium">Deuterium</a> here.

  • Tritium (³H or T): Tritium has one proton and two neutrons in its nucleus. Unlike protium and deuterium, tritium is radioactive. It decays with a half-life of about 12.32 years. More details about <a href="https://www.wikiwhat.page/kavramlar/Tritium">Tritium</a> can be found here.