The number of radioactive nuclei in a particular sample decreases over a period of 18 $\mathrm{d}$ to one-sixteenth the original number. What is the half-life of these nuclei?
Added by Steve E.
Step 1
Step 1: Start with the equation for radioactive decay: $\frac{N}{N_0} = e^{-\lambda t}$, where $N$ is the final number of nuclei, $N_0$ is the initial number of nuclei, $\lambda$ is the decay constant, and $t$ is the time. Show more…
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