Multiple Choice
The radioactive isotope tritium decays with a first-order rate constant k of 0.056 yr-1. What fraction of the tritium initially in a sample is still present 30. years later?
A) 0.19
B) 0.60
C) 0.15
D) 2.8 × 10-38
E) 0.81
Correct Answer:
Verified
Correct Answer:
Verified
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