A 68 −kg person is accidentally exposed for 252 s to a 13 −mCi source of beta radiation coming from a sample of 90Sr Part A: What is the activity of the radiation source in disintegrations per second? Express your answer using two significant figures. Part B What is the activity of the radiation source in becquerels? Express your answer using two significant figures.
A 68 −kg person is accidentally exposed for 252 s to a 13 −mCi source of beta radiation coming from a sample of 90Sr Part A: What is the activity of the radiation source in disintegrations per second? Express your answer using two significant figures. Part B What is the activity of the radiation source in becquerels? Express your answer using two significant figures.
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 68 −kg person is accidentally exposed for 252 s to a 13 −mCi source of beta radiation coming from a sample of 90Sr
Part A:
What is the activity of the radiation source in disintegrations per second?
Express your answer using two significant figures.
Part B
What is the activity of the radiation source in becquerels?
Express your answer using two significant figures.
Part C
Each beta particle has an energy of 8.65×10−14 J , and 7.2 % of the radiation is absorbed by the person. Assuming that the absorbed radiation is spread over the person's entire body, calculate the absorbed dose in rads and in grays.
Express your answer using two significant figures.
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