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The half-life of carbon-14 is approximately what?
The half-life of carbon-14 is approximately 5,730 years. This means that it takes 5,730 years for half of the carbon-14 in a sample to decay into nitrogen-14.
Carbon-14 has a half-life of 5730 years. how long does it take a 200-gram sample of carbon-14 decay to a mass of 100 grams?
5,730 years
How many years have past if only 12.5 of carbon 14 remain in an ancient sample?
This time is 17 190 years.
What is the age of a prehistoric mummified human skin that contains 12.5 percent of the original amount of carbon-14?
The half life of C-14 is about 5730 years and 12.5% is 100% x (.5)^3 so 3 half lives of the C-14 have occured. Now all you do is multiply 5730 years by 3 and get 17190 years. That's pretty old!
How old in years is a fossil sample that has 12.5 percent C-14?
The half-life of Carbon-14 is 5,730 years. As such for the carbon-14 to decay from 100% to 12.5% it would take three times the half-life of the material.100% (1st half life decay period) 50% (2nd half life decay period) 25% (3rd half life decay period) 12.5%.Therefore = 5730 x 3 = 17,190 years.
The half life of carbon 14 is 5730 years If a 1g sample of old carbon is one eighth as radioactive as 1g of a current sample then the age is about?
The ratio of radioactive carbon-14 in the old sample to the current sample is 1:8, suggesting 3 half-lives have passed. Since each half-life is 5730 years, the age of the old sample would be approximately 17190 years.
Can carbon dating be used on bones a million years old?
No, there are no detectable levels of carbon-14 left in any sample older than roughly 40,000 years. Without carbon-14 in the sample, no date can be determined.
A sample of wood contains 12.5 of its original carbon -14 what is the true estimate of this sample?
Carbon-14 has a half-life of about 5,730 years. If a wood sample contains 12.5% of its original carbon-14, it has undergone four half-lives (since 100% → 50% → 25% → 12.5%). Therefore, the true age estimate of the sample is approximately 22,920 years (4 half-lives x 5,730 years per half-life).
What is the half life of carbon -14?
The half-life of carbon 14 is 5,730 years.
The carbon-14 in a wooden sample shows a ratio of 0.280 between the carbon-14 in the wood and present-day samples The half-life of carbon-14 is 5730 years How old is the wood?
10,500 years old The carbon-14 in a wooden sample shows a ratio of 0.0093 between the carbon-14 in the wood and present-day samples. The half-life of carbon-14 is 5,730 years. How old is the wood? 38,700 years old
How many years after dying does a sample lose one-half of it carbon - 14 atoms?
5730 years (approx).
The half-life of carbon-14 is approximately what?
The half-life of carbon-14 is approximately 5,730 years. This means that it takes 5,730 years for half of the carbon-14 in a sample to decay into nitrogen-14.
When A carbon-14 sample starts with 100 atoms and 5730 years later there are 50 atoms. What is the half-life of carbon-14?
The half-life of carbon-14 is 5 730 years.
Carbon-14 has a half-life of 5730 years. How long does it take a 200-gram sample of carbon-14 to decay to a mass of 100 grams?
5,730 years
Carbon-14 has a half-life of 5730 years. how long does it take a 200-gram sample of carbon-14 decay to a mass of 100 grams?
5,730 years
What are 2 half lives of carbon 14?
The half-life of carbon-14 is approximately 5730 years. This means that after 5730 years, half of the original carbon-14 sample will have decayed. After another 5730 years (totaling 11,460 years), half of the remaining carbon-14 will decay.
What is a worked example of carbon dating?
Sure! Let's say we have a sample of a once-living material, like a piece of wood, and we want to determine its age using carbon dating. By measuring the ratio of carbon-14 to carbon-12 in the sample and comparing it to the known half-life of carbon-14 (about 5,730 years), we can calculate the approximate age of the sample. This method is effective for dating materials up to about 50,000 years old.
