The radioactive isotope Bismuth-210 has a half-life of 5 days. How many days does it take for 87.5% of a given amount to decay?
A) 15 days
B) 8 days
C) 10 days
D) 13 days
E) 11 days
F) 9 days
G) 12 days
H) 14 days
Correct Answer:
Verified
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