A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 10.00 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 52 25 75 35 103 46 188 radionuclide 74 Ma Br Pd W half-life 60 days 98.0 minutes 17. days 69.0 days initial radioactivity (choose one) (choose one) B (choose one) B (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount days minutes days days
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 10.00 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 52 25 75 35 103 46 188 radionuclide 74 Ma Br Pd W half-life 60 days 98.0 minutes 17. days 69.0 days initial radioactivity (choose one) (choose one) B (choose one) B (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount days minutes days days
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 14.99PAE
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NUCLEAR CHEMISTRY
Understanding radioactive half life
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 10.00 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
10
B
U
D
symbol
52
25
75
35
103
46
188
radionuclide
74
Ma
Br
Pd
W
half-life
6.0 days
98.0 minutes
17. days
69.0 days
initial
radioactivity
(choose one) B
(choose one) B
(choose one)
(choose one)
time for amount of
radionuclide to decrease to
1/4 of initial amount
days
minutes
days
0/5
days
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