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Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.

Isotopic systems that have been exploited for radiometric dating have half-lives ranging from only about 10 years (e.g., tritium) to over 100 billion years (e.g., samarium-147).

It is not affected by external factors such as temperature, pressure, chemical environment, or presence of a magnetic or electric field.

The only exceptions are nuclides that decay by the process of electron capture, such as beryllium-7, strontium-85, and zirconium-89, whose decay rate may be affected by local electron density.

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).

Another possibility is spontaneous fission into two or more nuclides.

Christian Connection runs regular events where you can meet other single Christians in a fun, relaxed environment.

You can also discover local events near you on our free dating meetup board, or create your own meetup!The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.and is now the principal source of information about the absolute age of rocks and other geological features, including the age of fossilized life forms or the age of the Earth itself, and can also be used to date a wide range of natural and man-made materials.Outside of church and work, it's often difficult to find places to meet other single Christians — online Christian dating solves this problem.Christian Connection lets you meet other Single Christians who are also looking for a relationship.For all other nuclides, the proportion of the original nuclide to its decay products changes in a predictable way as the original nuclide decays over time.