A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 20.00 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 1/8 of the initial amount. radionuclide time for amount of radionuclide to decrease to 1/8 of initial amount initial radioactivity sample symbol half-life 62 Cu 29 5.0 minutes (choose one) A minutes 46 Sc 21 84.0 days days B (choose one) 152 Eu 63 13. years (choose one) years 201 T1 81 73.0 hours (choose one) hours D (choose one) ? 1 (highest) 2 3 4 (lowest) Check Explanation Privacy O2019 McGraw-Hill Education. All Rights Reserved. Terms of Use C
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 20.00 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 1/8 of the initial amount. radionuclide time for amount of radionuclide to decrease to 1/8 of initial amount initial radioactivity sample symbol half-life 62 Cu 29 5.0 minutes (choose one) A minutes 46 Sc 21 84.0 days days B (choose one) 152 Eu 63 13. years (choose one) years 201 T1 81 73.0 hours (choose one) hours D (choose one) ? 1 (highest) 2 3 4 (lowest) Check Explanation Privacy O2019 McGraw-Hill Education. All Rights Reserved. Terms of Use C
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter18: Nuclear Chemistry
Section: Chapter Questions
Problem 5SP
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Question
Calculate how long it will take for them out of radionucleotide each sample to decrease to 1/8 of the intitial amount.
Transcribed Image Text:A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 20.00 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 1/8
of the initial amount.
radionuclide
time for amount of
radionuclide to decrease to
1/8 of initial amount
initial
radioactivity
sample
symbol
half-life
62
Cu
29
5.0 minutes
(choose one)
A
minutes
46
Sc
21
84.0 days
days
B
(choose one)
152
Eu
63
13. years
(choose one)
years
201
T1
81
73.0 hours
(choose one)
hours
D
(choose one)
?
1 (highest)
2
3
4 (lowest)
Check
Explanation
Privacy
O2019 McGraw-Hill Education. All Rights Reserved. Terms of Use
C
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