Chemistry, 23.11.2019 07:31 allenpaietonp9v8sv
Americium-241 is used in smoke detectors. it has a first-order rate constant for radioactive decay of k = 1.6x10^−3yr−1. by contrast, iodine-125, which is used to test for thyroid functioning, has a rate constant for radioactive decay of k = 0.011 day−1.
(a) what are the half-lives of these two isotopes?
(b) which one decays at a faster rate?
(c) how much of a 1.00-mg sample of each isotope remains after three half-lives?
(d) how much of a 1.00-mg sample of each isotope remains after 4 days?
Answers: 2
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Plz ill give u brainliest which of the following steps is not likely to take place during cellular respiration? a.oxygen combines with carbon of simple sugar. b. energy molecule transfers energy to cells. d. energy is used up.
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