* Number of neutrons: Tritiated hydrogen (also known as tritium) has one proton and two neutrons in its nucleus, while regular hydrogen has one proton and no neutrons.
* Atomic mass: Due to the extra neutrons, tritium has an atomic mass of 3, while regular hydrogen has an atomic mass of 1.
* Radioactivity: Tritium is a radioactive isotope of hydrogen. It undergoes beta decay, emitting an electron and an antineutrino. Regular hydrogen is not radioactive.
* Stability: Tritium is unstable and decays with a half-life of 12.3 years. Regular hydrogen is stable.
Here's a table summarizing the differences:
| Feature | Tritiated Hydrogen (Tritium) | Regular Hydrogen |
|----------------|--------------------------------|-----------------|
| Number of neutrons | 2 | 0 |
| Atomic mass | 3 | 1 |
| Radioactivity | Radioactive | Not radioactive |
| Stability | Unstable | Stable |
It's important to note that both tritiated hydrogen and regular hydrogen have the same number of protons, so they behave chemically in a similar way. However, the differences in their atomic structure and radioactive properties make tritium a unique and valuable element with applications in various fields, such as nuclear research, medical imaging, and dating methods.