A radioactive sample starts with 800,000 undecayed nuclei. After
12 hours, 700,000 of the nuclei have decayed. What is the half-life
of the sample?
A. 12 hours
B. 4 hours
C. 6 hours
D. 3 hours
A radioactive sample starts with 800,000 undecayed nuclei. After 12 hours, 700,000 of the nuclei have decayed. What is t
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