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 _______ mg in that fossil today.
A) 5
B) 2.5
C) 0.6
D) 0.3
E) 0.15
Correct Answer:

Verified
Correct Answer:
Verified
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