A radioactive isotope is being produced at a constant rate in an experiment. The isotope has a half- — Nuclear Chemistry and Radioactivity Chemistry Question

💡 Solution & Explanation

The net rate of change of nuclei is $\frac{dN}{dt} = R - \lambda N$. Once a steady state is reached, the number of nuclei is constant, so $\frac{dN}{dt} = 0$. This gives $R = \lambda N$, or $N = R/\lambda$. Therefore, correct answer is C.