Joe measures a the activity of a radioactive isotope with a short half-life (tHL) in an experiment much like we did for our experiment. He generates a TRENDLINE of: y = 3,456 e ^ - (0.75 x) using EXCEL plots the activity in counts per minute as a function of time, the time plotted in minutes on the X axis. From this TRENDLINE determine the half life of the isotope.
- 0.93 minutes
- 0.75 minutes
- 1.33 minutes
- 1.44 minutes
- 1.00 minute