A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 3.00 µmol 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. time for amount of radionuclide to decrease to 1/4 of initial amount radionuclide initial sample radioactivity symbol half-life 72 As 33 26. hours (choose one) v hours 60 Co 27 5.0 years (choose one) v O years B 99 Mo 42 66.0 hours (choose one) v O hours 227 Ac 89 22. years (choose one) v L years
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 3.00 µmol 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. time for amount of radionuclide to decrease to 1/4 of initial amount radionuclide initial sample radioactivity symbol half-life 72 As 33 26. hours (choose one) v hours 60 Co 27 5.0 years (choose one) v O years B 99 Mo 42 66.0 hours (choose one) v O hours 227 Ac 89 22. years (choose one) v L years
Chemistry
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![Understanding radloactive nal me
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 3.00 µmol 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.
radionuclide
time for amount of
initial
sample
radionuclide to decrease to
radioactivity
symbol
half-life
1/4 of initial amount
72
As
33
A
26. hours
(choose one) v
hours
60
Co
B
5.0 years
|(choose one) v
years
27
99
Mo
42
66.0 hours
(choose one)
hours
227
D
Ac
89
22. years
(choose one) v
O years
Explanation
Check
P Type here to search
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99+
IA
ASUS ZenBook
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Transcribed Image Text:Understanding radloactive nal me
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 3.00 µmol 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.
radionuclide
time for amount of
initial
sample
radionuclide to decrease to
radioactivity
symbol
half-life
1/4 of initial amount
72
As
33
A
26. hours
(choose one) v
hours
60
Co
B
5.0 years
|(choose one) v
years
27
99
Mo
42
66.0 hours
(choose one)
hours
227
D
Ac
89
22. years
(choose one) v
O years
Explanation
Check
P Type here to search
02022 McGraw Hill LLC All Rights Reserved. Terms of Use I Privacy Center Accessibility
99+
IA
ASUS ZenBook
F3
F5
F6
F8
F9
F10
F12
Prt Sc
Insert
De
%24
4.
&
6.
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