A medic hnican is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 22.00 umol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionudide in each sample to decrease to 1/8 of the initial amount. radionuclide time for amount of initial radioactivity radionuclide to decrease to 1/8 of initial amount sample symbol half-life 139 Ce 58 O days 138. days (choose one)) V 125 I 53 60.0 days |(choose one) v O days B 77 Br 35 hours 57.0 hours [(choose one) v 51 460 minutes (choore O minutes
A medic hnican is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 22.00 umol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionudide in each sample to decrease to 1/8 of the initial amount. radionuclide time for amount of initial radioactivity radionuclide to decrease to 1/8 of initial amount sample symbol half-life 139 Ce 58 O days 138. days (choose one)) V 125 I 53 60.0 days |(choose one) v O days B 77 Br 35 hours 57.0 hours [(choose one) v 51 460 minutes (choore O minutes
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter18: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 78CWP
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Transcribed Image Text:A medic hnican is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 22.00 umol of
the radionuclide.
First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionudlide in each sample
to decrease to 1/8 of the initial amount.
radionuclide
time for amount of
initial radioactivity radionuclide to decrease to
1/8 of initial amount
sample
symbol
half-life
139
Ce
58
138. days
(choose one) V
days
A
125
60.0 days
(choose one) v
O days
B
53
77
Br
35
57.0 hours
|(choose one) v
hours
51
Mn
O minutes
D
46.0 minutes
[choose one) v
25
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