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The procedures used to isolate and analyze the parent and daughter nuclides must be precise and accurate.

This normally involves isotope-ratio mass spectrometry. The precision of a dating method depends in part on the half-life of the radioactive isotope involved.

All ordinary matter is made up of combinations of chemical elements, each with its own atomic number, indicating the number of protons in the atomic nucleus.

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The basic equation of radiometric dating requires that neither the parent nuclide nor the daughter product can enter or leave the material after its formation.For instance, carbon-14 has a half-life of 5,730 years.

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