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Carbon 14 is used for dating things in Archaeology because it is radioactive with a conveniently long radioactive half life, is naturally occurring (produced by cosmic ray interactions in the atmosphere), and is taken up by all living things along with non-radioactive carbon while they are living.
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∙ 12y ago
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∙ 14y agoCarbon 14 is formed in atmosferic air when neutrons from cosmic rays collide with nitrogen nuclei in this equation (14/7)N + (1/0)n -------> (14/6)C + (1/1)p This radioactive Carbon formed react whit Oxigen of air forming radioactive Carbon dioxide. This radioactice CO2 is absorbed by vegetals (fotosinteses) and by animals (food). Thus the amount of C14 in animals and vegetals is almost constant because at the same time it is absorbed it too vanishe by Beta decay. (14/6)C -------> (14/7)N + (0/-1) Beta particle Whem the organisme dies, the C14 is not replaced by food or fotosinteses and the amount of this element start decreasing. Knowing the Half-life period of C14 (5.730 years) the scientists can determine the age of a fossil by the relation C14 remaining to the amount existing in a current similar species.
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∙ 12y agoCarbon 14 is used, mainly by archaeologists, to date bones and other formerly living matter but not normally fossils. This is because the half-life of that isotope is 5730 years; it is useful for dating up to 50,000 - 60,000 years but no more. There are many other isotopes of various elements used for dating the strata in which fossils are found.
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∙ 12y agoThe radioactive isotope carbon-14 is used in dating.
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∙ 11y agoRadioactive
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What are the names of the isotopes of thorium?
Copper (used in the treatment of cancer), Iodine (used in diagnostics) and 14C (used in radioactive dating/carbon dating)
Do most elements occurs a mixture of two or more isotopes on nature?
For elements the correct term is atomic weight.For isotopes the correct term is atomic mass.The atomic weight is determined considering the isotopic composition of an element and the atomic mass of each isotope.
What does a human carbon atom look like?
It has 6 protons and 6 neutrons its the first one. Ex:
Describe one way that radioactive isotopes have been used in agriculture?
it is used in soil
Is carbon stable?
Carbon monoxide is quite stable, and is formed by the combustion of carbon in inadequate supply of oxygen.
What is radiometeic dating?
Radiometric dating is a technique that detects the presence and abundance of radioactive isotopes and is used to give approximate ages of materials. One common form is carbon dating.
What is radiometer?
Radiometric dating is a technique that detects the presence and abundance of radioactive isotopes and is used to give approximate ages of materials. One common form is carbon dating.
What are the names of the isotopes of thorium?
Copper (used in the treatment of cancer), Iodine (used in diagnostics) and 14C (used in radioactive dating/carbon dating)
What is the process of estimating the age of an object using the half life of one or more radioactive isotopes called?
Carbon dating
What of the use of isotopes in archeology?
One would use radioactive isotopes as to measure decay rates in an ancient piece (e.g. rock) to estimate its age. e.g. carbon dating
Is carbon 14 dating radiometric dating?
Carbon 14 dating is one tpye of radiometric dating. It is used for destermiing the age of samples of one-living entities. See related links for more information.
Since radioactive isotopes decay at different rates how is radiocarbon dating of any value in determining how old a fossil is?
Radiocarbon dating is useful for determining the age of organic materials such as fossils because it measures the decay of carbon-14 isotopes. Carbon-14 has a half-life of about 5,730 years, making it suitable for dating organic remains up to around 50,000 years old. By comparing the ratio of carbon-14 to stable carbon isotopes in a sample, scientists can calculate its age.
True or false two isotopes of carbon are carbon-12 and carbon-14 theese isotopes differ from one another by two ELECTRONS?
False, different isotopes of the same element have different numbers of neutrons.
What is carbon dating mean?
This is how carbon dating works: Carbon is a naturally abundant element found in the atmosphere, in the earth, in the oceans, and in every living creature. C-12 is by far the most common isotope, while only about one in a trillion carbon atoms is C-14. C-14 is produced in the upper atmosphere when nitrogen-14 (N-14) is altered through the effects of cosmic radiation bombardment (a proton is displaced by a neutron effectively changing the nitrogen atom into a carbon isotope). The new isotope is called
How does carbon dating or radioactive dating work and why is it used?
Everything has carbon in it. When the organism dies, it begins to disintegrate. We know the rate at which things disintegrate at, so we can determine how much carbon is left and then apply a scientific formula and figure out how old the organism is. Radioactive dating works much the same.
What are carbon 12 carbon 13 carbon 14 are examples of?
isotopes of carbon
What are all the different dating methods in science?
carbon dating is one
