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Unformatted text preview: These are the undecayed atoms. Record your data in the data table. 6. Repeat steps 4-5 until you have no pennies left. Data Time (seconds) Number of Undecayed Atoms (heads up pennies) 100 Graph your data. Place the time on the X-axis and the number of undecayed atoms on the Y-axis. Be sure to label the X and Y-axis. Give your graph a title. Use the entire graph. Analyze and Conclude 1. Define half-life. 2. What is the half-life of pennium in your experiment? 3. Explain how you arrived at the number in question 2. Apply and Assess 1. a. Does exactly the same fraction of pennium atoms decay during each half-life? b. What does this suggest about half-life? 2. Why are such variations not likely to be obvious when actual atoms are involved? Home...
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