A radioactive substance has a half-life of 20 hours. What fraction of the original radioactive nuclei will remain after 80 hours?
-
A.
1/32 -
B.
1/16 -
C.
1/8 -
D.
1/4 -
E.
1/2
Correct Answer: Option B
Explanation
1 → 1/2 → 1/4 → 1/8 → 1/16
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