Question

Nitrogen-13, with a half-life of 10.0 min, decays by beta emission.
(a) Write down the decay equation to determine the daughter product and whether the beta particle is a positron or electron.
(b) If a sample of pure 13N has a mass of 1.50 g at a certain time, what is the activity 35.0 min later?
(c) What percentage of the sample is 13N at this time?
(d) What alternative process could have happened to the nitrogen-13? Write down its decay equation and determine the daughter product for this process.


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  • CreatedAugust 29, 2015
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