ConcepTest: Isotopic Dating with Parent to Daughter Ratios
Question:
The half-life of a radioactive isotope is 500 million years. Scientists testing a rock sample discover that the sample contains three times as many daughter isotopes as parent isotopes. What is the age of the rock?
a. 500 million years
b. 1,000 million years
c. 1,500 million years
d. 2,500 million years
a. 500 million years
b. 1,000 million years
c. 1,500 million years
d. 2,500 million years
Student Responses:
No data yet. The correct response is b.
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