Multiple Choice
Neptunium-239 has a half-life of 2.35 days.How many days must elapse for a sample of 239Np to decay to 1.00% of its original quantity?
A) 0.0640 days
B) 0.736 days
C) 1.36 days
D) 15.6 days
Correct Answer:

Verified
Correct Answer:
Verified
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