Multiple Choice
How many radioactive atoms are present in a sample that has an activity of 0.5 μCi and a half-life of 10 years? (1 curie = 3.7 × 1010 decays/s)
A) 9.5 × 1012 atoms
B) 8.4 × 1012 atoms
C) 7.3 × 1012 atoms
D) 6.5 × 1012 atoms
E) 2.7 × 105 atoms
Correct Answer:
Verified
Correct Answer:
Verified
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