Isotope dating of rocks getprofileu

16-Nov-2020 02:36

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This process of changing the isotope of one element (designated as the parent) into the isotope of another element (referred to as the daughter) is called radioactive decay.

Thus, the parent isotopes that decay are called radioisotopes.

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Radioactive isotopes are used to identify abnormal bodily processes.

The isotopes can also be used in plants to measure the amount of radioactivity in the leaves.

Most people today think that geologists have proven the earth and its rocks to be billions of years old by their use of the radioactive dating methods. Given so much time, the ‘impossible’ becomes possible, the possible probable, and the probable virtually certain.

Geologists regularly use five parent isotopes as the basis for the radioactive methods to date rocks: uranium-238, uranium-235, potassium-40, rubidium-87, and samarium-147.

These parent radioisotopes change into daughter lead-206, lead-207, argon-40, strontium-87, and neodymium-143 isotopes, respectively.

Isotopes are used as sources of radiation in medicine, sterilization, nondestructive control, etc.

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