Debunking the creationist radioactive dating argument. meaning that if, for example, 1% of the element decays in a year's time, at the end of a hundred years it. radioactive dating definition: the determination of the age of an artifact, bone, rock, etc. based on the known rates of decay of radioactive isotopes of various.
The isotope 14C is radioactive, and beta-decays with a half-life of 5, years. Very accurate measurements of the amount of 14C remaining, either by observing the beta decay of 14C or by accelerator mass spectroscopy using a particle accelerator to separate 12C from 14C and counting the amount of each allows one to date the death of the once-living things.
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. Using the decays of uranium and thorium, our galaxy has been found to be between 10 and 20 billion years old and the earth has been found to be 4.