How does radioactive dating help determine the age of fossils dating getting him back
Using this technique, called radiometric dating, scientists are able to "see" back in time.
Below is a chart of commonly used radiometric isotopes, their half-lives, and the daughter isotopes they decay into.
Scientists discovered that rocks could be timepieces -- literally.
Many chemical elements in rock exist in a number of slightly different forms, known as isotopes.
However, your readout from your radioactivity measuring instrument says you have only 25% Carbon-14 and 75% Nitrogen-14, so your fossil must have been through more than one half-life.
After two half-lives, another half of your leftover Carbon-14 would have decayed into Nitrogen-14.
The fossil record may be incomplete and may never fully completed, but there are still many clues to evolution and how it happens within the fossil record.