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同位素金屬:硒(Selenium)

Selenium Isotopes

Stable Selenium Isotopes - Se Isotopes
Nominal
mass
Accurate
mass
% Natural
abundance
Chemical
form
Enrichment
available %

74 Se 73.9224746 (16) 0.89 (4) metal 31 - 99+

76 Se 75.9192120 (16) 9.37 (29) metal, fluoride 74 - 98+

77 Se 76.9199125 (16) 7.63 (16) metal, fluoride 68 - 99+

78 Se 77.9173076 (16) 23.77 (28) metal, fluoride 89 - 97+

80 Se 79.9165196 (19) 49.61 (41) metal, fluoride 96 - 99+

82 Se 81.9166978 (23) 8.73 (22) metal, fluoride 73 - 99+
 

Selenium Isotopes are mainly used for the production of medical and industrial radioisotopes. Se-77 and Se-78 are used for the production of the therapeutic radioisotope Br-77. Se-80 is used for the production of the medical radioisotope Br-80m. Se-74 is used for the production of Se-75 which is used as a source in gamma radiography. Se-76 can be used for the production of the medical isotopes Br-75 and Br-76. Se-82 has been used to study double beta decay. Most of the Selenium isotopes have been used in studies into the role of Selenium as an essential nutrient. 

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