🤓 Based on our data, we think this question is relevant for Professor Zhu's class at IUPUI.
Recall that radioactive/nuclear decay of isotopes follows first-order kinetics, and the integrated rate law for first-order reactions is:
Step 1. Find decay constant (k):
239Pu is a nuclear waste byproduct with a half-life of 24,000 y. What fraction of the 239Pu present today will be present in 1000 y?