The hotel is located just one mile from SFO (San Francisco International Airport), offering a beautiful view of the San Francisco Bay.The hotel offers free 24-hour shuttle service to and from the airport, as well as to popular Downtown Burlingame which offers adventurers a variety of shopping and dining experiences.The uranium-235 to lead-207 decay series is marked by a half-life of 704 million years.These differing rates of decay help make uranium-lead dating one of the most reliable methods of radiometric dating because they provide two different decay clocks.
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It works because we know the fixed radioactive decay rates of uranium-238, which decays to lead-206, and for uranium-235, which decays to lead-207.
So, we start out with two isotopes of uranium that are unstable and radioactive.
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.