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mikael mikael
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10 years ago
A hospital patient has been given 131I (half-life = 8.04 days) which decays at  6.1 times the acceptable level for exposure to the general public. How long must the patient wait to reach the acceptable level? Assume that the material merely decays and is not excreted. 
A) 21 days 
B) 15 days 
C) 10 days 
D) 9.1 days 
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wrote...
10 years ago
A 21 DAYS
mikael Author
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10 years ago
Thank you.
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