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Carbon dating has given archeologists a more accurate method by which they can determine the age of ancient artifacts.
Libby invented carbon dating for which he received the Nobel Prize in chemistry in 1960.
By comparing the proportions, a scientist can determine the amount of time since the last replacement of the carbon-14, and thus give a rough time of how long ago the organism died.
When scientists use carbon dating, the measure the amount of radioactive carbon-14 present in a fossil or organic artifact.
This can be used to determine what time period an organism died even millions of years ago. This is a process by which the proportion of carbon-14 in an organism is compared to the proportion know to be in the environment the carbon came from.You may also download a PDF copy of this book (147 MB) or just this chapter (4 MB), suitable for printing or most e-readers, or a file containing this book's HTML files (for use in a web browser offline).If two reactions have the same order, the faster reaction will have a shorter half-life, and the slower reaction will have a longer half-life. From that point onwards, the carbon-14 atoms will undergo radioactive decay and the ratio of C-14 to C-12 would fall.The ratio of C-14 to C-12 (or total C) would give a measure of how long ago the organism died.