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The radioactive isotope 198 Au has a half-life of 46.8 hours. A pure sample of this isotope has an initial mass of 63 gr

Posted: Sun May 22, 2022 9:45 am
by answerhappygod
The radioactive isotope 198 Au has a half-life of 46.8 hours. A pure sample of this isotope has an
initial mass of 63 grams.
How much time is necessary for this sample to drop to 15% of its intial activity? and what is the number of nuclei that decay between hours 10 and 12 after the sample is
prepared??