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How Many 14C Atoms Are in a Charcoal Sample That

Question 121

Multiple Choice

How many 14C atoms are in a charcoal sample that has a decay rate of 3,500 disintegrations per min? (For 14C, t1/2 = 5,730 yr.)


A) 2.9 × 107 atoms
B) 8.0 × 10-7 atoms
C) 1.4 × 1014 atoms
D) 1.5 × 1013 atoms
E) 6.02 × 1020 atoms

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