radioactive material initially is observed to have an activity of 8000 decays/sec. If twelve hours later it is observed to have an activity of 125 decays/sec, what is its half-life? Please give answer in hours, to two sig figs.
radioactive material initially is observed to have an activity of 8000 decays/sec. If twelve hours later it is observed to have an activity of 125 decays/sec, what is its half-life? Please give answer in hours, to two sig figs.
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter14: Nuclear Chemistry
Section: Chapter Questions
Problem 14.95PAE
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A radioactive material initially is observed to have an activity of 8000 decays/sec. If twelve hours later it is observed to have an activity of 125 decays/sec, what is its half-life? Please give answer in hours, to two sig figs.
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