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Carbon dating problems chemistry

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Carbon-14 dating relies on the following assumptions: It is known that the radiocarbon content of the atmosphere has varied in the past, so the initial activity of carbon-14 has NOT been a constant.The following variations in carbon-14 activity have been noted: Calibration curves have been produced by comparing radiocarbon dates with other dating methods such as dendrochronology (a dating method using the tree's growth rings).Scientists look at half-life decay rates of radioactive isotopes to estimate when a particular atom might decay.A useful application of half-lives is radioactive dating.

carbon dating problems chemistry-86carbon dating problems chemistry-50

Carbon-14 can not be used to measure the age of very young specimens as the difference between the amount of carbon-12 and carbon-14 will not be sufficient to be detected.

As long as an organism is alive, the amount of C-14 in its cellular structure remains constant.

But when the organism dies, the amount of C-14 begins to decrease.

Because during each half-life, carbon loses half of its weight.

If you have a fossil, you can tell how old it is by the carbon 14 dating method.