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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 23.00 umol 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 1/16 of the initial amount. radionuclide time for amount of initial radioactivity sample radionuclide to decrease to 1/16 of initial amount symbol half-life 99 Мо O hours A 66.0 hours (choose one) v 42 137 Cs 55 30.0 years (choose one) v O years В 95 Nb 41 35.0 days (choose one) v O days 177 Lu 71 7.0 days (choose one) v O days D

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 23.00 umol 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 1/16 of the initial amount. radionuclide time for amount of initial radioactivity sample radionuclide to decrease to 1/16 of initial amount symbol half-life 99 Мо O hours A 66.0 hours (choose one) v 42 137 Cs 55 30.0 years (choose one) v O years В 95 Nb 41 35.0 days (choose one) v O days 177 Lu 71 7.0 days (choose one) v O days D

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter18: Nuclear Chemistry
Section: Chapter Questions
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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 23.00 umol 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 1/16 of the initial amount. radionuclide time for amount of initial radioactivity sample radionuclide to decrease to 1/16 of initial amount symbol half-life 99 Мо O hours A 66.0 hours (choose one) v 42 137 Cs 55 30.0 years (choose one) v O years В 95 Nb 41 35.0 days (choose one) v O days 177 Lu 71 7.0 days (choose one) v O days D
Transcribed Image Text:A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 23.00 umol 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 1/16 of the initial amount. radionuclide time for amount of initial radioactivity sample radionuclide to decrease to 1/16 of initial amount symbol half-life 99 Мо O hours A 66.0 hours (choose one) v 42 137 Cs 55 30.0 years (choose one) v O years В 95 Nb 41 35.0 days (choose one) v O days 177 Lu 71 7.0 days (choose one) v O days D
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