strontium-89
Sign in to saveAlso known as Sr-89, 89Sr, strontium sr-89
Strontium-89 () is a radioactive isotope of strontium with a half-life of 50.56 days. It undergoes β− decay (with practically no gamma rays) into yttrium-89. Strontium-89 has application in medicine. It is also a fission product, but is produced technically by neutron capture on ordinary strontium.
Wikidata facts
- Mass
- 88.907
Show 10 more facts
- atomic number
- 38
- neutron number
- 51
- half-life
- 50.53
- spin quantum number
- 2.5
- parity quantum number
- 1
- mass excess
- -86209.017
- binding energy
- 774827.058
- isomeric SMILES
- [89Sr]
- canonical SMILES
- [Sr]
- chemical formula
- Sr
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Article
4 sectionsContents
- History
- Physiological effects and medical use
- See also
- References
Strontium-89 () is a radioactive isotope of strontium with a half-life of 50.56 days. It undergoes β− decay (with practically no gamma rays) into yttrium-89. Strontium-89 has application in medicine. It is also a fission product, but is produced technically by neutron capture on ordinary strontium.
== History == Strontium-89 was first synthesized in 1937 by D. W. Stewart et al. at the University of Michigan; it was synthesized via irradiation of stable strontium (the 88Sr isotope) with deuterons. Biological properties and applications of strontium-89 were studied for the first time by Belgian scientist Charles Pecher. Pecher filed a patent in May 1941 for the synthesis of strontium-89 and yttrium-86 using cyclotrons, and described the therapeutic use of strontium.
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