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The half-life of 18N (Nitrogen with mass number of 18) is 0.62 s. What is the decay constant for this isotope? 0.43 S-1 The

The half-life of 18N (Nitrogen with mass number of 18) is 0.62 s. What is the decay constant for this isotope? 0.43 S-1 The decay constant is not defined for a half-life of less than one second. 1.7 E-11 Ci 1.1 s-1

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