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Unformatted text preview: Late materials will not be accepted. All work for all problems must be shown. Include proper units for each calculation. Each question is worth 2.5 points each. For the Chem 1021 Lecture Final exam students should know all of the medical uses of the radioisotopes that are given in Chapter 9: Table 9.5 (9 th Edition) or Chapter 3: Table 3.5 (8 th Edition). 1. A 30 mg sample of a radioactive substance has a half life of 2.4 days. How long will it take for the radioactive sample to have a mass of 3.75 mg? 2. How does distance affect the intensity of radiation? 3. What type of metal shield is commonly used in hospitals to protect against radiation exposure? 4. Which radioactive isotope(s) are used for pancreas scans?...
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This note was uploaded on 03/29/2011 for the course CHEMISTRY 1021 taught by Professor Jimbloxton during the Fall '09 term at Temple.
- Fall '09