Multiple Choice
What is the age in years of a mineral sample that has a mass ratio of 40Ar to 40K of 0.330? Potassium-40 decays to argon-40 with a half-life of 1.27 × 109 yr.
A) 3.85 × 109
B) 5.23 × 108
C) 1.77 × 109
D) 3.62 × 108
E) 2.55 × 109
Correct Answer:
Verified
Correct Answer:
Verified
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