Radioactive+Dating


 * Radioactive Dating **
 * By: Sam Monaco **
 * Radioactive dating is t he technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material. Willard Frank Libby Invented Radioactive dating. Willard Frank Libby proposed his first ideas of radioactive dating in 1947. In 1954, Willard Frank Libby was appointed by President Eisenhower as a member of the U.S. Atomic Energy Commission.


 * Half-life is the time required for one half of a atoms of an isotope to emit radiation and to decay products.The radioactive half-life is the time taken for the radioactivity of a specified isotope to fall to half its original value. Radioactive dating known as Carbon dating or C-14 dating works with the amount of the element carbon is in a organism. Scientists can use the amount of carbon left in a dead organism to find how long ago a organism died. Once an organism dies, the carbon in the organism begins to disintegrate at a steady, known rate. Scientists can measure the amount of carbon remaining and use a scientific formula to determine the age of the organism(Inventor of Carbon Dating, Willard Frank Libby, 1).

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 * Carbon 14 is unstable, it is created when a neutron collides into a Nitrogen 14 atom. The Nitrogen 14 turns into Carbon 14. The two modern methods of radioactive dating are radiometric dating and Accelerator Mass Spectrometry. The radiometric method detects beta particles from the decay of Carbon-14 atoms. Accelerator Mass Spectrometry counts the number of carbon-14 atoms present in a sample.