Which isotope is used to perform radiocarbon dating
Stone and metal cannot be dated but pottery may be dated through surviving residue such as food particles or paint that uses organic material (8).
Very old trees such as North American Bristlecone Pine are ideal for constructing long and accurate records of the state of the atmosphere.
date of organic material - but an approximate age, usually within a range of a few years either way.
The other method is “Relative Dating” which gives an order of events without giving an exact age (1): typically artefact typology or the study of the sequence of the evolution of fossils.
This new method was based on gas and liquid scintillation counting and these methods are still used today, having been demonstrated as more accurate than Libby's original method (3).
Willard Libby would receive a Nobel Prize for Chemistry in 1960.