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Selenium-79 (T1/2=2.80×105 a) which decays by pure β-minus emission, is chemically and radiological toxic. It is mainly produced in nuclear reactors and can only be found at significant levels in
Selenium-79 (T1 / 2 = 2.80 × 105 a) which decays by pure β-minus emission, is chemically and radiological toxic. It is mainly produced in nuclear reactors and can only be found at significant levels in