Plutonium has a half life of 2.4 × 104 years. How long does it take for 99% of the plutonium to decay?
A) 1.6 × 102 y
B) 1.6 × 104 y
C) 1.6 × 103 y
D) 1.6 × 106 y
E) 1.6 × 105 y
Correct Answer:
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