Log In. The thing that makes this decay process so valuable for determining the age of an object is that each radioactive isotope decays at its own fixed rate, which is expressed in terms of its half-life. For most radioactive nuclides, the half-life depends solely on nuclear properties and is essentially a constant. I also like the ability to create "guided note templates" from the transcripts of each video lesson. Email is not a valid email. Licenses and Attributions. Coastal Hazards.
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However, local eruptions of volcanoes or other events that give off large amounts of carbon dioxide can reduce local concentrations of carbon and give inaccurate dates.
17.5: Natural Radioactivity and Half-Life
Let's set up a similar table, though: Let's review. Running Water. These two uranium isotopes decay at different rates.