Radiometric dating is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes. Radiocarbon dating is a method used to determine the age of organic material by measuring the radioactivity of its carbon content.

## How is radioactive dating used to determine the age of rocks?

Absolute dating methods determine how much time has passed since rocks formed by measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals. Paleomagnetism measures the ancient orientation of the Earths magnetic field to help determine the age of rocks.

## How are radioactive materials used to determine the age of an object quizlet?

radioactive dating is a popular method to determine the age of various living systems. How does it work? By counting the percentage of carbon-14 in the tissue of the material and comparing it with the percentage of carbon-14 in living systems, they can see how many carbon-14 nuclei have decayed.

## Which radioisotope is used for diagnosing thyroid disorders?

Radioactive iodine takes advantage of the fact that thyroid cells and thyroid cancer cells absorb iodine; therefore, it has been used to diagnose or treat various thyroid disorders. Iodine is made into two radioactive isotopes, I-123 and I-131, that are commonly used in patients with thyroid disease.