A radioisotope lab created a new radioactive isotope. In order to determine the half-life of the new isotope, workers measured its mass over time and plotted their data on the curve below. Use the decay curve to answer the following questions. (8 points)
i. What was the half-life of the new isotope? (4 points)
ii. How much of the sample had decayed after 8 minutes? (4 points)
