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Solved: Calculating the Age of Objects Using Radioactive
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Calculating the Age of Objects Using Radioactive Decay
A rock contains 0.257 mg of lead-206 for every milligram of uranium-238. The half-life for the decay of uranium-238 to lead-206 is yr. How old is the rock?
A wooden object from an archeological site is subjected to radiocarbon dating. The activity due to 14C is measured to be 11.6 disintegrations per second. The activity of a carbon sample of equal mass from fresh wood is 15.2 disintegrations per second. The half-life of 14C is 5700 yr. What is the age of the archeological sample?
Questions & Answers
QUESTION:
Calculating the Age of Objects Using Radioactive Decay
A rock contains 0.257 mg of lead-206 for every milligram of uranium-238. The half-life for the decay of uranium-238 to lead-206 is yr. How old is the rock?
A wooden object from an archeological site is subjected to radiocarbon dating. The activity due to 14C is measured to be 11.6 disintegrations per second. The activity of a carbon sample of equal mass from fresh wood is 15.2 disintegrations per second. The half-life of 14C is 5700 yr. What is the age of the archeological sample?
ANSWER:
Step 1 of 4
Age of the sample can be calculated by the following formula;
