How to use carbon 14 dating

Animals and people take in carbon-14 by eating the plants.The ratio of normal carbon (carbon-12) to carbon-14 in the air and in all living things at any given time is nearly constant.

— The chemical properties of atoms depend on the number of protons in their nuclei, placing them into the periodic table.The method was developed immediately following World War II by Willard F.Libby and coworkers and has provided age determinations in archeology, geology, geophysics, and other branches of science.Since Nitrogen gas makes up about 78 percent of the Earth's air, by volume, a considerable amount of Carbon-14 is produced.The carbon-14 atoms combine with oxygen to form carbon dioxide, which plants absorb naturally and incorporate into plant fibers by photosynthesis.

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