The Radioactive Isotope Carbone-14 Is Used as a Tracer in Medical

question 13

Multiple Choice

The radioactive isotope carbone-14 is used as a tracer in medical and biological research. Compute the half-life of carbone-14 given that the decay constant k is $- 1.2097 \times 10 ^ { - 4 }$ (The units for k here are such that your half-life answer will be in years.) Please round the answer to one decimal place.

• A) 5,728.7years
• B) 5,729.2years
• C) 5,758.5years
• D) 5,730.3years
• E) 5,729.9years

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