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The radioactive decay of Cs-137 is displayed in the plot below. 100 90 80 70 60 50 40 30 20 10 20 Time (in Years) a. What is the half-life of this radioisotope in years? b. An ancient lab purchased and stocked 176 g of Cs-137, how many grams were left after 120 years? c. What percent of the original sample is left after 60 years? NOTE: Do not include units in your answer, Amount

The radioactive decay of Cs-137 is displayed in the plot below. 100 90 80 70 60 50 40 30 20 10 20 Time (in Years) a. What is the half-life of this radioisotope in years? b. An ancient lab purchased and stocked 176 g of Cs-137, how many grams were left after 120 years? c. What percent of the original sample is left after 60 years? NOTE: Do not include units in your answer, Amount

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter20: Nuclear Chemistry
Section: Chapter Questions
Problem 20.27QP
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The radioactive decay of Cs-137 is displayed in the plot below. 100 90 80 70 60 50 40 30 20 10 Time (in Years) a. What is the half-life of this radioisotope in years? b. An ancient lab purchased and stocked 176 g of Cs-137, how many grams were left after 120 years? c. What percent of the original sample is left after 60 years? NOTE: Do not include units in your answer. Amount 09 06 120 + osi 빠 081 210 - 240
Transcribed Image Text:The radioactive decay of Cs-137 is displayed in the plot below. 100 90 80 70 60 50 40 30 20 10 Time (in Years) a. What is the half-life of this radioisotope in years? b. An ancient lab purchased and stocked 176 g of Cs-137, how many grams were left after 120 years? c. What percent of the original sample is left after 60 years? NOTE: Do not include units in your answer. Amount 09 06 120 + osi 빠 081 210 - 240
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