Carbon-14 is the typical radioisotope used to date materials; however, it has a limitation to 40,000 years. A scientist who wants to date materials older than 40,000 years would most likely use ?
A scientist who wants to date materials older than 40,000 years would most likely use
Potassium – argon dating or K-AR dating. Potassium-40 is a radioactive isotope
of potassium that decays into argon-40. The half life of potassium-40 is 1.3
billion years far longer than carbon-14.
