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A Radioactive Substance with a Half-Life of 3 Days Has

Question 20

Multiple Choice

A radioactive substance with a half-life of 3 days has an initial activity of 0.24 Ci. What is its activity after 6 days?

A) 0.12 Ci
B) 0.02 Ci
C) 0.06 Ci
D) 0.23 Ci
E) 0.48 Ci

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