Like all radioactive substances, the carbon isotope has a "half life", and reduces in radioactivity over time in a predictable way.
To measure the age of objects that are mineral or otherwise not derived from biological remains, scientists examine biological remains in the vicinity of the object that is to be dated.
Continue Reading During the formation of the Earth, radioactive elements became embedded in the minerals that make up the Earth's crust.
12 08 - Phrased simply, radioactive dating is the method that uses .
What "decay" means is that the atoms in the object or body become unstable, and, .
Relative dating methods came before radiometric, and are less precise.
According to the 2009 edition of "Essentials of Physical Anthropology," relative dating methods rely on the comparison of two or more things to establish a relative age. One of the main methods of relative dating, stratigraphic dating uses the depth at which something is found to determine its relative age.