Radioactive Decay: Rutherfordium-261 has a half-life of 1.08 min. How long will it take for a sample of rutherfordium to lose one-third of its nuclei?
A. 1.02 min
B. 1.62 min
C. 0.632 min
D. 2.70 min
E. 3.24 min
Answer: C
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