 | |
| General | |
|---|---|
| Symbol | 198Au |
| Names | gold-198, 198Au, Au-198 |
| Protons (Z) | 79 |
| Neutrons (N) | 119 |
| Nuclide data | |
| Half-life (t1/2) | 2.69464 d[1] |
| Isotope mass | 197.9682437[2] Da |
| Spin | 2− |
| Decay products | 198Hg |
| Decay modes | |
| Decay mode | Decay energy (MeV) |
| β− | 1.3735[2] |
| Isotopes of gold Complete table of nuclides | |
Gold-198 (198Au) is a radioactive isotope of gold. It undergoes beta decay to stable 198Hg with a half-life of 2.69464 days.
The decay properties of 198Au have led to widespread interest in its potential use in radiotherapy for cancer treatments. This isotope has also found use in nuclear weapons research and as a radioactive tracer in hydrological research.
- ^ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 139. doi:10.1088/1674-1137/abddae.
- ^ a b Wang, M.; Audi, G.; Kondev, F. G.; Huang, W. J.; Naimi, S.; Xu, X. (2017). "The AME2016 atomic mass evaluation (II). Tables, graphs, and references" (PDF). Chinese Physics C. 41 (3): 030003-1–030003-442. doi:10.1088/1674-1137/41/3/030003.