A medicai lechnician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 25.00 µumol 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. radionuclide time for amount of initial sample radionuclide to decrease to radioactivity symbol half-life 1/32 of initial amount 62 A Cu 5.0 minutes (choose one) v |minutes 29 145 340.0 days O days Sm (choose one) v 62 51 Čr 24 28.0 days (choose one) v O days 52 6.0 days O days D Mn |(choose one) ♥ 25

World of Chemistry, 3rd edition
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Chapter19: Radioactivity And Nuclear Energy
Section19.2: Application Of Radioactivity
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A medicai lechnician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 25.00 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.
radionuclide
time for amount of
radionuclide to decrease to
1/32 of initial amount
initial
sample
radioactivity
symbol
half-life
62
A
Cu
5.0 minutes
(choose one)
|minutes
29
145
340.0 days
O days
В
Sm
(choose one) v
62
51
28.0 days
O days
Cr
(choose one)
24
52
Mn
6.0 days
(choose one) v
||days
25
Explanation
Check
Transcribed Image Text:A medicai lechnician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 25.00 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. radionuclide time for amount of radionuclide to decrease to 1/32 of initial amount initial sample radioactivity symbol half-life 62 A Cu 5.0 minutes (choose one) |minutes 29 145 340.0 days O days В Sm (choose one) v 62 51 28.0 days O days Cr (choose one) 24 52 Mn 6.0 days (choose one) v ||days 25 Explanation Check
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