A medical technidan 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 1/32 of the initial amount.

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radionuclide
time for amount of
initial radioactivity radionuclide to decrease to
1/32 of initial amount
sample
symbol
half-life
55
Co
27
18. hours
(choose one)
|hours
90
Y
39
64.0 hours
(choose one) ▼
hours
178
Ta
73
C =
9.0 minutes
(choose one
|minutes
46
Sc
21
84.0 days
|(choose one) v
I days
A.
B.
Transcribed Image Text:radionuclide time for amount of initial radioactivity radionuclide to decrease to 1/32 of initial amount sample symbol half-life 55 Co 27 18. hours (choose one) |hours 90 Y 39 64.0 hours (choose one) ▼ hours 178 Ta 73 C = 9.0 minutes (choose one |minutes 46 Sc 21 84.0 days |(choose one) v I days A. B.
A medical technidan 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 radionucdide in each sample
to decrease to 1/32 of the initial amount.
Transcribed Image Text:A medical technidan 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 radionucdide in each sample to decrease to 1/32 of the initial amount.
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