Gold-198

Gold-198, 198Au
General
Symbol198Au
Namesgold-198, 198Au, Au-198
Protons (Z)79
Neutrons (N)119
Nuclide data
Half-life (t1/2)2.69464 d[1]
Isotope mass197.9682437[2] Da
Spin2−
Decay products198Hg
Decay modes
Decay modeDecay energy (MeV)
β1.3735[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.

  1. ^ 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.
  2. ^ 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.