h lodine-123 has a half life of 13 hours. How many hours are required for 95% of an 1-123 sample to decay? hours 84.5% of a radioactive isotope decays in 310.0 days. Calculate its half life in days. days
h lodine-123 has a half life of 13 hours. How many hours are required for 95% of an 1-123 sample to decay? hours 84.5% of a radioactive isotope decays in 310.0 days. Calculate its half life in days. days
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter18: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 28E
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Parts G and H. I thought the answers were 56.21 and 115.21 but it says they're wrong.
![13. Check your conceptual understanding of various radioactive decay processes and your understanding of
radioactive decay calculations (and your ability to apply the first order integrated rate law equations you learned in
chemical kinetics to radioactive decay).
a.
f.
9
h.
b.
C.
d.
e.
Alpha decay of polonium-210 would produce
O bismuth-210
O estate 210
O radon 214
O lead-206
Beta decay of potassium-41 would produce
O calcium-40
O argon 41
agon-40
O calcium 41
Positron emission of F-18 would produce
O Ne-20
0.0.16
ON 18
O 0-18
Electron capture of Cr-51 would produce
O Mn 56
O Cr-52
O V-51
O Mn 51
What is the most likely mode(s) of decay for Be-7
alpha emission
fission
electron capture
beta emission
postron emission
Uranium-232 is a radioactive isotope with a half life of 68.9 years.How long in years will it take for
40% of a sample of U-232 to decay?
years
lodine-123 has a half life of 13 hours. How many hours are required for 95% of an 1-123 sample to
decay?
hours
84.5% of a radioactive isotope decays in 310.0 days. Calculate its half life in days.
days](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c3aaa2f-5572-46d7-a6eb-ebd7e182f306%2Fc1076cda-8411-40b3-9c2f-fb09b566763d%2F6xz9s9u_processed.jpeg&w=3840&q=75)
Transcribed Image Text:13. Check your conceptual understanding of various radioactive decay processes and your understanding of
radioactive decay calculations (and your ability to apply the first order integrated rate law equations you learned in
chemical kinetics to radioactive decay).
a.
f.
9
h.
b.
C.
d.
e.
Alpha decay of polonium-210 would produce
O bismuth-210
O estate 210
O radon 214
O lead-206
Beta decay of potassium-41 would produce
O calcium-40
O argon 41
agon-40
O calcium 41
Positron emission of F-18 would produce
O Ne-20
0.0.16
ON 18
O 0-18
Electron capture of Cr-51 would produce
O Mn 56
O Cr-52
O V-51
O Mn 51
What is the most likely mode(s) of decay for Be-7
alpha emission
fission
electron capture
beta emission
postron emission
Uranium-232 is a radioactive isotope with a half life of 68.9 years.How long in years will it take for
40% of a sample of U-232 to decay?
years
lodine-123 has a half life of 13 hours. How many hours are required for 95% of an 1-123 sample to
decay?
hours
84.5% of a radioactive isotope decays in 310.0 days. Calculate its half life in days.
days
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