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Why is radioactive dating useful

How Does Radiometric Dating Work?, Ars Technica

Appendix Radioactive Dating The technique of comparing the abundance ratio of a radioactive isotope to a reference isotope to determine the age of a material is called radioactive dating. The isotope 14C, a radioactive form of carbon, is produced in the upper atmosphere by neutrons striking 14N nuclei. The isotope 14C is radioactive, and beta-decays with a half-life of 5, years.

The best estimate from this dating technique says the man lived between and BC. A potassium-argon method of dating, developed inmeasures the amount of 40Ar arising from the 40K decay and is compared to the amount of 40K remaining in the rock.

The age of our galaxy and earth also can be estimated using radioactive dating.

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Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot​. Nevertheless this chapter offers a useful and compact synopsis of radioactive dating methods for non-specialist professionals and moreover for students of the​.