Common isotopes for radiometric dating
We know these steps because researchers followed the progress of carbon-14 throughout the process.
Radioactive isotopes are useful for establishing the ages of various objects.
The amount of radioactive iodine that collects there is directly related to the activity of the thyroid, allowing trained physicians to diagnose both hyperthyroidism and hypothyroidism.
However, therapeutic applications usually require much larger doses because their purpose is to preferentially kill diseased tissues.Radioactive isotopes are effective tracers because their radioactivity is easy to detect.