Fermium-253 has a half-life of 3.00 days. If a sample of fermium originally has 7.37 × $10 ^ { 7 }$ nuclei, how long will it take for there to be only 3.36 × $10 ^ { 6 }$ fermium-253 nuclei left in this sample?

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Quizplus · Accepted Answer

The decay of fermium-253 can be calculated using the formula $ N = N_0 \times (1/2)^{t/T} $, where $ N_0 $ is the initial number of nuclei, $ N $ is the remaining number of nuclei, $ t $ is the time elapsed, and $ T $ is the half-life. Solving for $ t $ gives approximately 13.4 days.

Fermium-253 Has a Half-Life of 3 10710 ^ { 7 }107

Fermium-253 Has a Half-Life of 3 $10 ^ { 7 }$