Phosphorus-32, a beta emitter, is a radioactive isotope used in many biomedical applications.How much time has passed if the ratio of 32S/ 32P is 4/5? (The half-life of phosphorus-32 is 14.3 days.)
A) 11.4 days
B) 16.7 days
C) 4.60 days
D) 12.1 days
E) 16.9 days
Correct Answer:
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