Fermium-253 has a half-life of 3.00 days. A sample of fermium has 3.88 × 10⁶ nuclei. What is the initial activity of this sample?

Question

Quizplus · Accepted Answer

The initial activity (A) can be calculated using the formula A = λN, where λ is the decay constant and N is the number of nuclei. The decay constant λ = ln(2) / half-life. For Fermium-253, λ = ln(2) / (3.00 days * 86400 seconds/day). Substituting the values, the initial activity is approximately 10.4 Bq.

Fermium-253 Has a Half-Life of 3