What is the difference between radioactive decay and radiometric dating
A particular isotope of a particular element is called a nuclide. That is, at some point in time, an atom of such a nuclide will undergo radioactive decay and spontaneously transform into a different nuclide.
This transformation may be accomplished in a number of different ways, including alpha decay (emission of alpha particles) and beta decay (electron emission, positron emission, or electron capture).
It is only accurate to a period of time less than that.
But with uranium-lead radiometric dating, certain rock samples can be dated back billions of years.
For example: If an archaeologist is studying past civilizations, the archaeologist may be able to say that in a particular location the ruins of once civilization were found to have been build on another and so the layers unearthed in an excavation convey the sequence of historical occupations without revealing the actual dates.
If the archaeologist finds a sample suitable for carbon dating, then an absolute date may be assigned to an object.
Before radiometric dating it was difficult to determine the actual age of an object.
Different methods of radiometric dating vary in the timescale over which they are accurate and the materials to which they can be applied.Both are attempting to get information on the history of events.The primary difference in relative dating and absolute dating is that absolute dating assigns an actual time or age to an event or object.Radiometric techniques are one method of absolute dating and, for example, counting tree rings is another form of absolute dating.Any technique that assigns a certain age or date is a form of absolute dating.