سلنیم-۷۹
Sign in to saveAlso known as Se-79, 79Se
Selenium-79 is a radioisotope of selenium present in spent nuclear fuel and the wastes resulting from reprocessing this fuel. It is one of only seven long-lived fission products. Its fission yield is low (about 0.04%), as it is near the lower end of the mass range for fission products. Its half-life has been variously reported as 650,000 years, 65,000 years, 1.13 million years, 480,000 years, 295,000 years, 377,000 years, and most recently and the best current value, 327,000 years.
Wikidata facts
- Instance of
- isotope of selenium
- Subclass of
- selenium
- Mass
- 78.918499251
Show 7 more facts
- neutron number
- 45
- atomic number
- 34
- half-life
- 295000.0
- spin quantum number
- 3.5
- parity quantum number
- 1
- mass excess
- -75917.459
- binding energy
- 686951.768
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