Carbon dating in itself is not unreliable, it finds the approximate age of the carbon particles in a material. However, a piece of the material must be destroyed in order to date it.
perhaps, radioactive... :)
Carbon-14 is the isotope most commonly used in radioactive dating of organic materials like bones and charcoal.
Carbon 14... i just did that same question on castle learning haha :)
The most often used radioactive elements used in radiometric dating are carbon, potassium-argon and uranium-lead.Other elements are not, or very rarely used.
carbon-14
The two types of radioactive dating that are most common are: Carbon 14 and Potassium-Argon. There are quite a few others.
CARBON DATING The most common fossil dating techniques are radiometric dating techniques. Radiometric dating uses knowledge of the decay rates of unstable ( radioactive ) nuclei to determine, by comparison with the proportion of stable nuclei in a fossil sample, the date of the introduction of the radioactive material into the live organism, especially if the isotope was ingested while the organism was alive.
The two methods are "RELATIVE DATING" and "ABSOLUTE DATING". :)
Their radioactive clock is set when they solidify from magma or lava.
By far the most common is radioactive dating which involves checking the amount of a given radioactive isotope in a given sample is left over (and calculating from the half-life [the time it takes for a radioactive element/isotope to decay to half the original amount]). Another one would likely be tree-ring dating which only determines the age of trees by how many rings it has.
The age of an object that was once living.
There not unreliable BMW is the most reliable then VW,Audi then mercedes and the only one thats unreliable is OPEL