Multiple Choice
Approximately how many radioactive atoms are present in a tritium sample with an activity of 0.2 × 10−6 Ci and a half-life of 12.3 years? (1 Ci = 3.7 × 1010 decays/s)
A) 1.3E+5
B) 1.1E+2
C) 3.5E-6
D) 4.1E+12
E) 2.9E+12
Correct Answer:
Verified
Correct Answer:
Verified
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