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A patient swallows a radiopharmaceutical tagged with phosphorus-32 ( 32P), a B- emitter with a half-life of 14.3 days. The average kinetic energy of the emitted electrons is 700 kev. The initial activity of the sample is 1.31 MBq. (a) What is the number of electrons emitted in a 7.5 day period? electrons (b) What is the total energy deposited in the body during the 7.5 days? (c) What is the absorbed dose if the electrons are completely absorbed in 216 g of tissue? rad

A patient swallows a radiopharmaceutical tagged with phosphorus-32 ( 32P), a B- emitter with a half-life of 14.3 days. The average kinetic energy of the emitted electrons is 700 kev. The initial activity of the sample is 1.31 MBq. (a) What is the number of electrons emitted in a 7.5 day period? electrons (b) What is the total energy deposited in the body during the 7.5 days? (c) What is the absorbed dose if the electrons are completely absorbed in 216 g of tissue? rad

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter25: Nuclear Chemistry
Section25.4: Rates Of Nuclear Decay
Problem 25.5CYU
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A patient swallows a radiopharmaceutical tagged with phosphorus-32 15 a B- emitter with a half-life of 14.3 days. The average kinetic energy of the emitted electrons is 700 keV. The initial activity of the sample is 1.31 MBq. (a) What is the number of electrons emitted in a 7.5 day period? electrons (b) What is the total energy deposited in the body during the 7.5 days? (c) What is the absorbed dose if the electrons are completely absorbed in 216 g of tissue? rad
Transcribed Image Text:A patient swallows a radiopharmaceutical tagged with phosphorus-32 15 a B- emitter with a half-life of 14.3 days. The average kinetic energy of the emitted electrons is 700 keV. The initial activity of the sample is 1.31 MBq. (a) What is the number of electrons emitted in a 7.5 day period? electrons (b) What is the total energy deposited in the body during the 7.5 days? (c) What is the absorbed dose if the electrons are completely absorbed in 216 g of tissue? rad
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