Uses of radioisotopes in carbon 14 dating
Radioactive isotopes are effective tracers because their radioactivity is easy to detect.
A is a substance that can be used to follow the pathway of that substance through some structure.
Iodine-131 has been used for treatment and detection in the system of thyroid disorders.
The amount of carbon-14 in the wood decreases with time as it decays into nitrogen with a half-life of about 5700 years.
By comparing how much carbon-14 there is in the dead organism with the amount in a living one, the age of the dead organism can be estimated.
The half-life of uranium-238 is 4500 million years.
We know these steps because researchers followed the progress of the radioactive carbon-14 throughout the process.
Radioactive isotopes are useful for establishing the ages of various objects.
First, try the practice questions to determine what you already know about radioisotopes.
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