Radioactive dating methods involve radioactive isotopes of various elements and, In addition, it has been necessary to exclude information apropos recent. Radioactive dating definition, any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived.
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.