Carbon, for example, can exist as a stable isotope (carbon-12 or carbon-13) or as a radioactive isotope (carbon-14), the latter of which can be used in radiometric dating (specifically radiocarbon dating) to determine the age of organic materials.
Daɣ almital ,Carbon, addobat emel as amos isotope (tamakat-12 meɣ tamakat 13) meɣ radioactive isotope (tamakat -14), wan uchray s addobat radiometric dating (hullan radiocarbon dating) i musnat n awatay n isuj