Difference between radioactive decay radiometric dating make money by dating

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

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After one half-life has elapsed, one half of the atoms of the nuclide in question will have decayed into a "daughter" nuclide or decay product.

In many cases, the daughter nuclide itself is radioactive, resulting in a decay chain , eventually ending with the formation of a stable nonradioactive daughter nuclide; each step in such a chain is characterized by a distinct half-life.

This field is known as thermochronology or thermochronometry.

The age is calculated from the slope of the isochron line and the original composition from the intercept of the isochron with the y-axis.

Radioactive decay[ edit ] Example of a radioactive decay chain from lead Pb to lead Pb.

The final decay product, lead Pb , is stable and can no longer undergo spontaneous radioactive decay.

This is well-established for most isotopic systems.

Plotting an isochron is used to solve the age equation graphically and calculate the age of the sample and the original composition.

In these cases, usually the half-life of interest in radiometric dating is the longest one in the chain, which is the rate-limiting factor in the ultimate transformation of the radioactive nuclide into its stable daughter.

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