Question 17.10: Using Carbon-14 Content to Determine the Age of Fossils or A......
Using Carbon-14 Content to Determine the Age of Fossils or Artifacts
Some wood ashes from a fire pit in the ruins of an ancient village have a carbon-14 content that is 25% of the amount found in living organisms. How old are the ashes and, by implication, the village?
Step-by-Step
| C-14(%)* | Number of Half-Lives | Time (yrs) |
| 100 | 0 | 0 |
| 50.0 | 1 | 5715 |
| 25.0 | 2 | 11,430 |
*Percent relative to living organisms. The ashes are from wood that was
living 11,430 years ago.
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