Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 1.2 mg sample of tin-129. Give your answer in becquerels and in curies. Be sure your answer has the correct number of significant digits. ?
Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 1.2 mg sample of tin-129. Give your answer in becquerels and in curies. Be sure your answer has the correct number of significant digits. ?
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.77E
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Transcribed Image Text:Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 1.2 mg sample of tin-129. Give your
answer in becquerels and in curies. Be sure your answer has the correct number of significant digits.
Bq
?
Transcribed Image Text:0.693 N
R =
I|
t1/2
0.693 (1.29 )
R =
2.23 min
R=0.4 min-1
In becquerel R=0.0066 Bq
In Curie=1.80×10¬13 c.
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