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All isotopes of technetium are radioactive, but they have widely varying half-lives. If an 800.0 g sample of 99Tc decays to 100.0 g in 639000
All isotopes of technetium are radioactive, but they have widely varying half-lives. If an 800.0 g sample of 99Tc decays to 100.0 g in 639000 y, what is its half-life?
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The halflife of a radioactive substance is the time it takes for half of a sample of the substance to decay Lets use the formula for the exponential decay of a radioactive substance N N0 05 t T where N remaining quantity of the substance N0 initial quantity of the substance t ...
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Sampling Design And Analysis
Authors: Sharon L. Lohr
2nd Edition
495105279, 978-0495105275
