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Relative vs. Absolute Location in Geography

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In this lesson we'll discuss both absolute and relative Methods of Geological Dating: Numerical and Relative Dating. Uniformitarianism: Definition, Principles.

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Description: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. 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. Additionally, elements may exist in different isotopes , with each isotope of an element differing in the number of neutrons in the nucleus. A particular isotope of a particular element is called a nuclide.

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