Radioactive Decay Calculations Practice Problem 

Here, we'll work through a calculation involving radioactive decay. This type of problem involves variables including nuclear or radioactive half-life, decay constant (k), time elapsed (t), as well as natural log (ln) functions, and the number e. Questions of this type are commonly found involving unstable isotopes and radioactive dating. In this particularly problem, we are given a starting amount (in grams) of Radon-222, and we must determine how many grams will remain after a specific length of time.