Multiple Choice
The half-life of a particular radioactive isotope of element X is 100 years. If you know that 400 years ago a fossil contained 10 mg of this isotope, you would expect to find about _______ in that fossil today.
A) 5 mg
B) 2.5 mg
C) 0.6 mg
D) 0.3 mg
E) 0.15 mg
Correct Answer:
Verified
Correct Answer:
Verified
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