Carbon dating process infornation
The half-life is always the same regardless of how many nuclei you have left, and this very useful property lies at the heart of radiocarbon dating. The graph below shows the decay curve (you may recognize it as an exponential decay) and it shows the amount, or percent, of carbon-14 remaining.You will notice that after around 40,000 years (or 8 half-lives), the amount left is starting to become very small, less than 1%.
After it forms, carbon-14 naturally decomposes, with a half-life of 5,730 years, through beta-particle decay.How Carbon Dating works Carbon dating is one method scientists use to measure the ages of objects which were alive at some time in the past. In our atmosphere there are particles of carbon, when rays from the sun hit them it turns a few of them into carbon 14 (a radioactive carbon). Of all the carbon in the world only a very small amount is radioactive. Plants are designed to absorb carbon dioxide (what you and I breathe out --.
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Plants take in atmospheric carbon dioxide by photosynthesis, and are ingested by animals.