F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical imaging, such as PET scans. The half-life for F-18 is 1.828 hours. a. What is the half-life for F-18 in minutes? b. What is the half-life for F-18 in seconds? c. Determine the identity of X in the nuclear equation below: 18F → 180 + X d. Based on your findings from part (c) above, determine if F-18 undergoes alpha decay, beta decay, or gamma ray emission? e. Based on your answer to part (d) above, how can this type of radiation be stopped? In other words, what can one do to protect themselves from this type of radiation and what kind of substance (barrier) can be used to stop this type of radiation? f. Based on the half-life of F-18, how many half-lives have to pass for 200 mg sample of F-18 to decay down to 12.5 mg? g. Differentiate between acute and chronic radiation sickness. h. If the wavelength on the electromagnetic spectrum is 575 nm, what is this wavelength in meters? i. Based on your answer to part (h) above, in what region of the electromagnetic spectrum does this wavelength fall in (if in visible region then specify the color)? j. Based on your answer to part (i) above, would this type of radiation be considered high or low energy on the electromagnetic spectrum? k. Based on your answer to part (i) above, would this type of radiation be considered very long or very short wavelengths or neither on the electromagnetic spectrum?
F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical imaging, such as PET scans. The half-life for F-18 is 1.828 hours. a. What is the half-life for F-18 in minutes? b. What is the half-life for F-18 in seconds? c. Determine the identity of X in the nuclear equation below: 18F → 180 + X d. Based on your findings from part (c) above, determine if F-18 undergoes alpha decay, beta decay, or gamma ray emission? e. Based on your answer to part (d) above, how can this type of radiation be stopped? In other words, what can one do to protect themselves from this type of radiation and what kind of substance (barrier) can be used to stop this type of radiation? f. Based on the half-life of F-18, how many half-lives have to pass for 200 mg sample of F-18 to decay down to 12.5 mg? g. Differentiate between acute and chronic radiation sickness. h. If the wavelength on the electromagnetic spectrum is 575 nm, what is this wavelength in meters? i. Based on your answer to part (h) above, in what region of the electromagnetic spectrum does this wavelength fall in (if in visible region then specify the color)? j. Based on your answer to part (i) above, would this type of radiation be considered high or low energy on the electromagnetic spectrum? k. Based on your answer to part (i) above, would this type of radiation be considered very long or very short wavelengths or neither on the electromagnetic spectrum?
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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Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
part: j,k
Transcribed Image Text:4. F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical
imaging, such as PET scans. The half-life for F-18 is 1.828 hours.
a. What is the half-life for F-18 in minutes?
b. What is the half-life for F-18 in seconds?
c. Determine the identity of X in the nuclear equation below:
18F → 180 + X
d. Based on your findings from part (c) above, determine if F-18 undergoes alpha decay,
beta decay, or gamma ray emission?
e. Based on your answer to part (d) above, how can this type of radiation be stopped? In
other words, what can one do to protect themselves from this type of radiation and
what kind of substance (barrier) can be used to stop this type of radiation?
f. Based on the half-life of F-18, how many half-lives have to pass for 200 mg sample
of F-18 to decay down to 12.5 mg?
g. Differentiate between acute and chronic radiation sickness.
h. If the wavelength on the electromagnetic spectrum is 575 nm, what is this wavelength
in meters?
i. Based on your answer to part (h) above, in what region of the electromagnetic
spectrum does this wavelength fall in (if in visible region then specify the color)?
j. Based on your answer to part (i) above, would this type of radiation be considered
high or low energy on the electromagnetic spectrum?
k. Based on your answer to part (i) above, would this type of radiation be considered
very long or very short wavelengths or neither on the electromagnetic spectrum?
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