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Title: Fermium-253 has a half-life of 3.00 days. A sample of fermium has 7.37 × 107 nuc Post by: ppk on Jan 9, 2012 Fermium-253 has a half-life of 3.00 days. A sample of fermium has 7.37 × 107 nuclei. How long will it take for there to be only 3.36 × 106 fermium nuclei in this sample?
A) 2.75 days B) 9.80 days C) 13.4 days D) 15.7 days E) 58.6 days Title: Re: Fermium-253 has a half-life of 3.00 days. A sample of fermium has 7.37 × 107 nuc Post by: chemb on Jan 9, 2012 A) 2.75 days Title: Re: Fermium-253 has a half-life of 3.00 days. A sample of fermium has 7.37 × 107 nuc Post by: einstein on Dec 11, 2022 Is this how it's done?
Fermium-253 has a half-life of 3.00 days. A sample of fermium has 7.77 × 107 nuclei. How long will it take for there to be only 2.96 × 106 fermium nuclei in this sample? |