9-50 Answer true or false. (a) Of the radioisotopes listed in Table 9-5, the majority decay by beta emission. (b) Isotopes that decay by alpha emission are rarely if ever used in nuclear imaging because alpha emitters are rare. (c) Gamma emitters are so widely used in medical imaging because gamma radiation is penetrating and, therefore, can easily be measured by radiation detectors outside the body. (d) When selenium-75 decays by electron capture and gamma emission, the new nucleus formed is arsenic-75 (e) When iodine-131 decays by beta and gamma emission, the new nucleus formed is xenon-131 (f) In positron emission tomography (a PET scan), the detector counts the number of positrons emitted by a tagged material and the location within the body where the tagged material accumulates. (g) The use of 18-fluorodeoxyglucose (FDG) in PET scans of the brain depends on the fact that FDG behaves in the body as does glucose. (h) A goal of radiation therapy is to destroy pathological cells and tissues without at the same time damaging normal cells and tissues. (i) In external beam radiation, radiation from an external source is directed at a tissue either on the surface of the body or within the body. (j) In internal beam radiation, a radioactive material is implanted in a target tissue to destroy cells in the target tissue without doing appreciable damage to surrounding normal tissues.

BuyFind

Introduction to General, Organic a...

11th Edition
Frederick A. Bettelheim + 4 others
Publisher: Cengage Learning
ISBN: 9781285869759
BuyFind

Introduction to General, Organic a...

11th Edition
Frederick A. Bettelheim + 4 others
Publisher: Cengage Learning
ISBN: 9781285869759

Solutions

Chapter 9, Problem 9.50P
Textbook Problem

9-50 Answer true or false.

(a) Of the radioisotopes listed in Table 9-5, the majority decay by beta emission.

(b) Isotopes that decay by alpha emission are rarely if ever used in nuclear imaging because alpha emitters are rare.

(c) Gamma emitters are so widely used in medical imaging because gamma radiation is penetrating and, therefore, can easily be measured by radiation detectors outside the body.

(d) When selenium-75 Chapter 9, Problem 9.50P, 9-50 Answer true or false. (a) Of the radioisotopes listed in Table 9-5, the majority decay by beta , example  1decays by electron capture and gamma emission, the new nucleus formed is arsenic-75 Chapter 9, Problem 9.50P, 9-50 Answer true or false. (a) Of the radioisotopes listed in Table 9-5, the majority decay by beta , example  2

(e) When iodine-131 Chapter 9, Problem 9.50P, 9-50 Answer true or false. (a) Of the radioisotopes listed in Table 9-5, the majority decay by beta , example  3decays by beta and gamma emission, the new nucleus formed is xenon-131 Chapter 9, Problem 9.50P, 9-50 Answer true or false. (a) Of the radioisotopes listed in Table 9-5, the majority decay by beta , example  4

(f) In positron emission tomography (a PET scan), the detector counts the number of positrons emitted by a tagged material and the location within the body where the tagged material accumulates.

(g) The use of 18-fluorodeoxyglucose (FDG) in PET scans of the brain depends on the fact that FDG behaves in the body as does glucose.

(h) A goal of radiation therapy is to destroy pathological cells and tissues without at the same time damaging normal cells and tissues.

(i) In external beam radiation, radiation from an external source is directed at a tissue either on the surface of the body or within the body.

(j) In internal beam radiation, a radioactive material is implanted in a target tissue to destroy cells in the target tissue without doing appreciable damage to surrounding normal tissues.

Expert Solution

Want to see the full answer?

Check out a sample textbook solution.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.

Chapter 9 Solutions

Introduction to General, Organic and Biochemistry
Ch. 9 - 9-11 In each case, given the frequency, give the...Ch. 9 - 9-12 Red light has a wavelength of 650 nm. What is...Ch. 9 - 9-13 Which has the longest wavelength: (a)...Ch. 9 - 9-14 Write the symbol for a nucleus with the...Ch. 9 - 9-15 In each pair, tell which isotope is more...Ch. 9 - 9-16 Which isotope of boron is the most stable:...Ch. 9 - 9-17 Which isotope of oxygen is the most stable:...Ch. 9 - 9-18 Answer true or false. (a) The majority...Ch. 9 - 9-19 Samarium-151 is a beta emitter. Write an...Ch. 9 - 9-20 The following nuclei turn into new nuclei by...Ch. 9 - 9-21 Chromium-51 is used in diagnosing the...Ch. 9 - 9-22 The following nuclei decay by emitting alpha...Ch. 9 - 9-23 Curium-248 was bombarded, yielding...Ch. 9 - 9-24 Phosphorus-29 is a positron emitter. Write an...Ch. 9 - 9-25 For each of the following, write a balanced...Ch. 9 - 9-26 In the first three steps in the decay of...Ch. 9 - 9-27 What kind of emission does not result in...Ch. 9 - 9-28 Complete the following nuclear reactions. (a)...Ch. 9 - 9-29 Americium-240 is made by bombarding...Ch. 9 - 9-30 Answer true or false. (a) Half-life is the...Ch. 9 - 9-31 Iodine-125 emits gamma rays and has a...Ch. 9 - 9-32 Polonium-218, a decay product of radon-222...Ch. 9 - 9-33 A rock containing 1 mg of plutonium-239 per...Ch. 9 - 9-34 The element radium is extremely radioactive....Ch. 9 - 9-35 In what ways can we increase the rate of...Ch. 9 - 9-36 Suppose 50.0 mg of potassium-45, a beta...Ch. 9 - 9-37 A patient receives 200 mCi of iodine-131,...Ch. 9 - 9-38 Answer true or false. (a) Ionizing radiation...Ch. 9 - 9-39 If you work in a lab containing radioisotopes...Ch. 9 - 9-40 What do Geiger-Müller counters measure: (a)...Ch. 9 - 9-41 It is known that radioactivity is being...Ch. 9 - 9-42 Briefly contrast the three different units...Ch. 9 - 9-43 Does a curie (Ci) measure radiation intensity...Ch. 9 - 9-44 What property is measured with each of the...Ch. 9 - 9-45 A radioactive isotope with an activity...Ch. 9 - 9-46 Why does exposure of a hand to alpha rays not...Ch. 9 - 9-47 A certain radioisotope has an intensity of...Ch. 9 - 9-48 Assuming the same amount of absorbed...Ch. 9 - 9-49 In an accident involving radioactive...Ch. 9 - 9-50 Answer true or false. (a) Of the...Ch. 9 - 9-51 In 1986, the nuclear reactor in Chernobyl had...Ch. 9 - 9-52 Cobalt-60, with a half-life of 5.26 years, is...Ch. 9 - 9-53 Match the radioactive isotope with its proper...Ch. 9 - 9-54 Answer true or false. (a) In nuclear fusion,...Ch. 9 - 9-55 What are the products of the fusion of...Ch. 9 - 9-56 Assuming that one proton and two neutrons...Ch. 9 - 9-57 Element 109 was first prepared in 1982. A...Ch. 9 - 9-58 A new element was formed when lead-208 was...Ch. 9 - 9-59 Boron-10 is used in control rods for nuclear...Ch. 9 - 9-60 The most abundant isotope of uranium, does...Ch. 9 - 9-61 (Chemical Connections 9A) Why is it accurate...Ch. 9 - 9-62 (Chemical Connections 9A) In a recent...Ch. 9 - 9-63 (Chemical Connections 9A) Carbon-14 dating of...Ch. 9 - 9-64 (Chemical Connections 9A) The half-life of...Ch. 9 - 9-65 (Chemical Connections 9B) How does radon-222...Ch. 9 - 9-66 (Chemical Connections 9C) Why is high-energy...Ch. 9 - 9-67 (Chemical Connections 9D) How is the presence...Ch. 9 - 9-68 (Chemical Connections 9E) In a nuclear...Ch. 9 - 9-69 Phosphorus-32 is used in the medical imaging...Ch. 9 - 9-70 During the bombardment of argon-40 with...Ch. 9 - 9-71 Neon-19 and sodium-20 are positron emitters....Ch. 9 - 9-72 The half-life of nitrogen-16 is 7 seconds....Ch. 9 - 9-73 Do the curie and the becquerel measure the...Ch. 9 - 9-74 Selenium-75 has a half-life of 120.4 days, so...Ch. 9 - 9-75 Use Table 9-4 to determine the percentage of...Ch. 9 - is an alpha emitter. In its decay process, it...Ch. 9 - 9-77 Which radiation will cause more ionization,...Ch. 9 - 9-78 You have an old wristwatch that still has...Ch. 9 - 9-79 Americium-241, which is used in some smoke...Ch. 9 - 9-80 On rare occasions, a nucleus will capture a...Ch. 9 - 9-81 A patient is reported to have been irradiated...Ch. 9 - 9-82 What is the ground state of a nucleus?Ch. 9 - 9-83 Explain the following: (a) It is impossible...Ch. 9 - 9-84 Yttrium-90, which emits beta particles, is...Ch. 9 - 9-85 The half-lives of some oxygen isotopes are as...Ch. 9 - 9-86 is effective in prostate cancer therapy when...Ch. 9 - 9-87 When is bombarded with a new element and six...Ch. 9 - 9-88 Americium-241, the isotope used in smoke...Ch. 9 - 9-89 Boron-10, an effective absorber of neutrons,...Ch. 9 - 9-90 Tritium, is a beta emitter widely used as a...Ch. 9 - 9-91 Radon-222 decays to a stable nucleus by a...Ch. 9 - 9-92 Neptunium-237 decays by a series of steps to...Ch. 9 - 9-93 Thorium-232 decays by a 10-step process,...

Additional Science Textbook Solutions

Find more solutions based on key concepts
Incidental food additives: a. help to preserve foods, b. consist mostly of added sugars and salt, c. are really...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Name the following compounds: a HCl(g) b HBr(aq) c HF(g) d HNO2(aq)

General Chemistry - Standalone book (MindTap Course List)

Complete the following table:

Chemistry & Chemical Reactivity

List two major functions of lipids in the human body.

Chemistry for Today: General, Organic, and Biochemistry

A Van de Graaff generator (see Problem 24) produces a beam of 2.00-MeV deuterons, which are heavy hydrogen nucl...

Physics for Scientists and Engineers, Technology Update (No access codes included)

_______ is the arrival of pollen on a receptive stigma.

Biology: The Unity and Diversity of Life (MindTap Course List)

Are the wave speed and period of an internal wave comparable to those of a wind wave? A tsunami?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin