Carbon 14 dating math problem
Since the amount of carbon was when it was fresh, after t years is 82% of or . Divide both sides by Take natural logs of both sides: Divide both sides by Answer: about 1650 years old. If the bone has lost 18% of its carbon in t years, then 82% of it remains after t years.
Visit Stack Exchange The preferred method of dating dinosaur fossils is with the radiometric dating method.
The fluctuation of the amount of C-14 in the atmosphere over time adds a small uncertainty, but contamination by "modern carbon" such as decayed organic matter from soils poses a greater possibility for error. Thomas Seiler, a physicist from Germany, gave the presentation in Singapore.
He said that his team and the laboratories they employed took special care to avoid contamination.
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If dinosaur bones are 65 million years old, there should not be one atom of C-14 left in them.