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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 7.00 μmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/4 of the initial amount. sample A B C D symbol 32 15 177 71 188 [३] [४] 27 radionuclide P Lu Re Co half-life 14. days 7.0 days 17. hours 18. hours Initial radioactivity (choose one) (choose one) (choose one) (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount days X days hours hours 3

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 7.00 μmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/4 of the initial amount. sample A B C D symbol 32 15 177 71 188 [३] [४] 27 radionuclide P Lu Re Co half-life 14. days 7.0 days 17. hours 18. hours Initial radioactivity (choose one) (choose one) (choose one) (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount days X days hours hours 3

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter25: Nuclear Chemistry
Section: Chapter Questions
Problem 67IL
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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 7.00 μmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/4 of the initial amount. sample A B U D symbol 32 15 177 71 188 75 55 27 radionuclide P Lu 3 Re Co half-life 14. days. 7.0 days 17. hours 18. hours. Initial radioactivity (choose one) (choose one) (choose one) (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount X days days hours hours S olo E
Transcribed Image Text:A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 7.00 μmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/4 of the initial amount. sample A B U D symbol 32 15 177 71 188 75 55 27 radionuclide P Lu 3 Re Co half-life 14. days. 7.0 days 17. hours 18. hours. Initial radioactivity (choose one) (choose one) (choose one) (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount X days days hours hours S olo E
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