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gold-198
Sign in to saveAlso known as Au-198, 198Au, gold au-198
Gold-198 (198Au) is a radioactive isotope of gold, normally made by neutron capture on natural gold (entirely gold-197). It undergoes exclusively beta decay to stable 198Hg with a half-life of 2.6946 days.
Chemical data
- Formula
- Au
- Molecular weight
- 197.968244 g/mol
- IUPAC name
- gold-198
via PubChem
Wikidata facts
- Instance of
- isotope of gold
- Subclass of
- gold
- Mass
- 197.968243724
- Has use
- nuclear medicine
Show 10 more facts
- atomic number
- 79
- neutron number
- 119
- half-life
- 2.6948
- spin quantum number
- 2.0
- parity quantum number
- -1
- chemical formula
- Au
- isomeric SMILES
- [198Au]
- canonical SMILES
- [Au]
- mass excess
- -29580.781
- binding energy
- 1565896.266
via Wikidata · CC0
~3 min read
Encyclopedic overview
8 sectionsContents
- Discovery
- Decay
- Applications
- Nuclear medicine
- Radioactive tracing
- Nuclear weapons
- See also
- References
Gold-198 (198Au) is a radioactive isotope of gold, normally made by neutron capture on natural gold (entirely gold-197). It undergoes exclusively beta decay to stable 198Hg with a half-life of 2.6946 days.
The decay properties of 198Au have led to 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.
Excerpted from Wikipedia’s “gold-198” article, available under the CC BY-SA 4.0 licence.