A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each samplecontains 10.00 μmol of the radionuclide.First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclidein each sample to decrease to 1/16 of the initial amount.radionuclidesampleinitialradioactivitytime for amount ofradionuclide to decrease tosymbolhalf-life1/16 of initial amount59AFe45.0 days(choose one)days2626131BI8.0 days(choose one)days5353C33P25.0 days(choose one)days1515D558538Sr65.0 days(choose one) CXdaysG

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Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 7.00 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 1/32 of the initial amount. radionuclide sample initial radioactivity time for amount of radionuclide to decrease to 1/32 of initial amount A (choose one) ✓ hours (choose one) ✓ minutes (choose one) hours (choose one) minutes B D symbol 67 Ga 31 11 6 149 65 122 53 C Tb H half-life 78.0 hours 20.0 minutes 4.0 hours 4.0 minutes > X G ? 27 09: olo Ar
OSIMZ2/spwel... A" O NUCLEAR CHEMISTRY = Arvind V 1/5 Understanding radioactive half life A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 15.00 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 1/16 of the initial amount. radionuclide sample initial radioactivity time for amount of radionuclide to decrease to 1/16 of initial amount alb (choose one) years (choose one) days (choose one) hours (choose one) ✓ days B C D symbol 194 Os 76 96 43 212 82 88 39 Ic Pb Y half-life 6.0 years 4.0 days 11. hours 107. days X S ? M2²
MISSED THIS? Read Section 17.5. You can click on the Review link to access the section in your eText. Part A A patient is given 0.050 mg of technetium-99 m (where m means metastable-an unstable but long-lived state), a radioactive isotope with a half-life of about 6.0 hours. How long until the radioactive isotope decays to 1.3x10-2 mg ? Express your answer using two significant figures. ΑΣφ. ? hours Submit Request Answer
What percentage of Technituum-99m would remain in your body 24 hours after injection with this radioisotope? Assume that the initial percentage is 100%.
Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical Imaging B*, y B+, y 20.3 m Brain scan to trace glucose metabolism Brain scan to trace glucose metabolism Detect eye tumors Diagnose albinism, image the spleen and gastrointestinal tract Bone marrow function, diagnose anemias Whole-body scan for tumors Pancreas scan Lung ventilation scan Scan for bone diseases, including cancer Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle Diagnosis of thyroid malfunction Kidney scan Heart scan and exercise stress test Carbon-11 Fluorine-18 F P Cr Fe Ga 109 m 14.3 d Phosphorus-32 Chromium-51 Iron-59 Gallium-67 Selenium-75 Krypton-81m Strontium-81 Technetium-99m E.C., Y В, у E.C., y E.C., y 27.7 d 44.5 d 78.3 h 118 d BlKr Sr vTe 13.3 s 22.2 m 6.01 h Iodine-131 Mercury-197 Thallium-201 В, у E.C., Y E.C., y 8.04 d 64.1 h 20!TI 3.05 d (1) The radioactive isotope phosphorus-32 is used in medical imaging as indicated on the table above. How…
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 8.00 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 1/16 of the initial amount. sample A B C D symbol 82 37 127 54 149 65 91 radionuclide 39 Rb Xe Tb Y half-life 1. minute 36.0 days 4.0 hours 59.0 days initial radioactivity (choose one) (choose one) ✓ (choose one) ✓ (choose one) ✓ time for amount of radionuclide to decrease to 1/16 of initial amount minutes days hours days
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 17.00 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 1/16 of the initial amount. sample A B D symbol 18 9 75 M 35 177 71 152 63 radionuclide F Br Lu Eu half-life 2. hours 98.0 minutes 7.0 days 13. years initial radioactivity (choose one) (choose one) O (choose one) (choose one) time for amount of radionuclide to decrease to 1/16 of initial amount hours minutes days years
Radioactive isotopes that sit above the band of stability (N/Z too high) are most likely to decay by what mode(s)? Alpha emission Electron capture or beta emission Positron or electron capture Positron or alpha emission Beta emission
14
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 17.00 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 1/32 of the initial amount. 000 radionuclide sample initial radioactivity time for amount of radionuclide to decrease to 1/32 of initial amount Ar days A days B hours C hours D symbol 192 Ir 77 188 74 62 30 67 31 W Zn Ga half-life 74.0 days 69.0 days 9.0 hours 78.0 hours (choose one (choose one) (choose one) (choose one) X ?
A medical technican is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 6.00 umol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionudide in each sample to decrease to 1/4 of the initial amount.

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