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If a bone sample only contains original radioactive carbon (C), it suggests that it is very old, as the original carbon-14 would have decayed over time. Carbon-14 has a half-life of about 5,730 years, so if no carbon-14 remains, the bone could be thousands of years old. However, without knowing the exact amount of remaining carbon-14 or the specific dating method used, it's impossible to determine its precise age. Typically, samples older than about 50,000 years are considered beyond the detectable range of carbon dating.
A bone in which the carbon-14 has undergone 3 half-lives would be approximately 17,100 years old, as each half-life of carbon-14 is about 5,700 years.
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!
It contains 6 protons, 8 neutrons, and 6 electrons
DDT contains 3 elements: carbon, hydrogen, and chlorine.
If a bone sample only contains original radioactive carbon (C), it suggests that it is very old, as the original carbon-14 would have decayed over time. Carbon-14 has a half-life of about 5,730 years, so if no carbon-14 remains, the bone could be thousands of years old. However, without knowing the exact amount of remaining carbon-14 or the specific dating method used, it's impossible to determine its precise age. Typically, samples older than about 50,000 years are considered beyond the detectable range of carbon dating.
Dinosaur bones won't have any C14; that's all used up in about 50,000 years. The "freshest" dino bone you can find will be at least 65,000,000 years old. Actually, the dino bone will be so mineralized that there really won't be any "bone" left.
The artifact is approximately 17,500 years old. This calculation is based on the half-life of carbon-14, which is about 5,730 years. By determining the percentage of remaining carbon-14 in the artifact, scientists can estimate its age.
Carbon 12 the most common contains 6 Carbon 13 contains 7 Carbon 14 contains 8
A bone in which the carbon-14 has undergone 3 half-lives would be approximately 17,100 years old, as each half-life of carbon-14 is about 5,700 years.
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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!
All carbon atoms have 6 protons, which is why carbon's atomic number is 6. All neutral carbon atoms have 6 electrons. The number of neutrons in a carbon-14 atom is its mass number minus its atomic number, 14 - 6 = 8 neutrons.
Carbon fourteen contains two more neutrons as compared to carbon twelve.
With the chemical equation given, each molecule of carbon dioxide contains 1 carbon atom. Therefore, 14 molecules of carbon dioxide will require 14 carbon atoms to react with the 14 molecules of oxygen.
Carbon-14 dating is commonly used in archaeology to determine the age of organic materials, such as bone and charcoal. This method measures the radioactive decay of carbon-14 isotopes in the sample to estimate its age.
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