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The radioactive isotope 8P decays by positron emission. If the mass of a sample of phosphorus-28 decays from 79.2 micrograms to 9.90 micrograms in 0.840 seconds, what is the half-life of phosphorus-28? Half-life = seconds

The radioactive isotope 8P decays by positron emission. If the mass of a sample of phosphorus-28 decays from 79.2 micrograms to 9.90 micrograms in 0.840 seconds, what is the half-life of phosphorus-28? Half-life = seconds

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The radioactive Isotope 28P decays by positron emission. If the mass of a sample of phosphorus-28 decays from 79.2 micrograms to 9.90 micrograms in 0.840 seconds, what is the half-life of phosphorus-28? Half-life = seconds use the keferences to access important values in the for the p The half-life of the radioactive isotope thorium-230 is 8.00 x 10¹ years. How long will it take for the mass of a sample of thorium-230 to decay from 88.8 micrograms to 22.2 micrograms? years The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is 5.730 × 10³ years. A wooden artifact in a museum has a 14C count that is 1.56 x 10-2 times that found in living organisms. Estimate the age of the artifact. Age = years
Transcribed Image Text:The radioactive Isotope 28P decays by positron emission. If the mass of a sample of phosphorus-28 decays from 79.2 micrograms to 9.90 micrograms in 0.840 seconds, what is the half-life of phosphorus-28? Half-life = seconds use the keferences to access important values in the for the p The half-life of the radioactive isotope thorium-230 is 8.00 x 10¹ years. How long will it take for the mass of a sample of thorium-230 to decay from 88.8 micrograms to 22.2 micrograms? years The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is 5.730 × 10³ years. A wooden artifact in a museum has a 14C count that is 1.56 x 10-2 times that found in living organisms. Estimate the age of the artifact. Age = years
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