A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 6.00 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 1/4 of the initial amount. sample A B C D symbol 227 89 59 26 131 55 182 radionuclide 73 Ac Fe Cs Ta half-life 22. years 45. days 10. days 115. days initial radioactivity (choose one) C (choose one) O (choose one) C (choose one) O time for amount of radionuclide to decrease to 1/4 of initial amount years days days days
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 6.00 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 1/4 of the initial amount. sample A B C D symbol 227 89 59 26 131 55 182 radionuclide 73 Ac Fe Cs Ta half-life 22. years 45. days 10. days 115. days initial radioactivity (choose one) C (choose one) O (choose one) C (choose one) O time for amount of radionuclide to decrease to 1/4 of initial amount years days days days
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.51E
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Question
Transcribed Image Text:A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 6.00 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 1/4
of the initial amount.
sample
A
B
C
D
symbol
227
89
59
26
131
55
182
radionuclide
73
Ac
Fe
Cs
Ta
half-life
22. years
45. days
10. days
115. days
initial
radioactivity
(choose one) C
(choose one) O
(choose one) C
(choose one) O
time for amount of
radionuclide to decrease to
1/4 of initial amount
years
days
days
days
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