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ppk ppk
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12 years ago
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
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wrote...
#1
12 years ago
Quote from: PPK (12 years ago)
A) 2.75 days
wrote...
#2
A year ago
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?
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