Isotopes are atoms of the same element which vary by the number of neutrons in their nucleus. Some isotopes have so many neutrons that the nucleus is unstable and reduces its size by releasing either alpha or beta particles or gamma rays. In such situations, the isotope is termed radioactive.
Radioactive elements are ubiquitous in soil, water and air. Each radioactive element has its own rate of decay, which has been established in laboratories.
The key to radiometric dating is that radioactive isotopes normally decay at a precise rate and the time they take for half of the atoms to decay is known as the half-life. Half-lives can vary from fractions of a second to millions of years for different isotopes. The element that decays is called the parent and the element into which it breaks down is called the daughter. Radiometric dating does not measure dates but rather, it measures the ratio of parent to daughter elements. Then, knowing the rate of decay, it is possible to infer the time the process has taken. However, there are three major and unprovable assumptions involved with this method:
The initial amount of the daughter element is assumed to be zero. The rate of decay is assumed to have been constant for the period of time calculated, which in most cases is in the order of thousands; although evolutionists would claim millions of years. It is assumed that the system has remained closed. That is, no parent or daughter elements have entered or left the system during the calculated period.
There are many examples, some of which are listed below, where radiometric dating has given the wrong dates for specimens of known historical age.
- Rock from the lava dome at Mt St Helens, which was formed in 1986, was dated by the potassium-argon method as being 350 ± 50 thousand years old. Rock from lava flows from Mt Ngauruhoe in New Zealand, which occurred in 1945, 1954 and 1975, was dated from 3 billion nucleotides).
As shown, radiometric dating is of no help to the evolutionist and it even provides strong evidence for a young earth with 14 C being in everything. For powerful evidence in support of a young earth, go to: https://www. adefenceofthebible. com/2019/06/05/overwhelming-scientific-evidence-for-a-young-earth.
As shown previously, ice core dating when actual measurements are taken into account, does not support deep time either: https://www. adefenceofthebible. com/2019/05/01/ice-core-dating.
We are told ad nauseam that dinosaurs died out 65 million years ago. This is present in all nature shows, newspaper articles, books, in fact everything we read and see. The 65 Million years is not based on hard science, but merely to prop up evolution. For more on this, go to: https://www. adefenceofthebible. com/2019/02/14/did-dinosaurs-really-become-extinct-65-million-years-ago. Note: the last three examples involve sea creatures, and their incorrect dates are partly or wholly, due to the ‘Reservoir Effect.’ But this simply explains why the C-14 results are wrong. In fact, all radiometric dates which are wrong have valid explanations, most of which are due to the flawed assumptions behind the method, as explained above. The existence of valid explanations does not change the fact that the method gives wrong answers.  S. Austin, Creation Ex Nihilo Technical Journal, 1996, 10 (3), 335–343; G. B. Darymple, Earth and Planetary Sciences Letters, 1969, 6, pages 47–55.  J. C. Funkhouser and J. J. Naughton, Journal of Geophysical Research, 1968, 73, pages 4601–4607.  A. Snelling, Stumping Old Age Dogma, Creation, 1998, 20 (4), pages 48–50; creation. com/stumping-old-age-dogma.