A study has been made of the radioactive chain Se⁸³→Br⁸³→Kr*83. The last member is an isomer of the stable krypton of mass 83. An isomeric pair Se^790ex0exor0ex0ex81 has been found and the two genetically related nuclear isomers have been separated chemically. Kr⁸³ and Br⁸³ are produced by the fission of uranium and thorium as well as by the bombardment of selenium with deuterons and slow neutrons.
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Langsdorf et al. (1940) studied this question.
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