30 70 60 50 40 30 20 10 0 0 1 2 3 4 Time (Days) 6 7 8 9 How long is the half-life of the isotope shown in the graph? How many half-lives have passed after 8 days? After 6 days, what percentage of the isotope sample is left? How much of the original sample would be left after 6 half-lives? Using the isotope from the graph, determine how long it would take a sample of 600 g to decay to 75 g. If scientists determined a 4 g sample of this isotope was 20 days old, how much was in the original amount?

30 70 60 50 40 30 20 10 0 0 1 2 3 4 Time (Days) 6 7 8 9 How long is the half-life of the isotope shown in the graph? How many half-lives have passed after 8 days? After 6 days, what percentage of the isotope sample is left? How much of the original sample would be left after 6 half-lives? Using the isotope from the graph, determine how long it would take a sample of 600 g to decay to 75 g. If scientists determined a 4 g sample of this isotope was 20 days old, how much was in the original amount?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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