Question 1

Which of the following forms of radiation is a form of electromagnetic radiation?

Accepted Answer

A)  α 
B)    
C)    
D)  all of these 
A)  α 
B)    
C)    
D)  all of these

Question 2

Which of the following statements is true?

Accepted Answer

A)  In light atoms there are generally many more protons than neutrons. 
B)  In light atoms there are generally many more neutrons than protons. 
C)  In light atoms the number of protons and neutrons are nearly equal. 
D)  Most naturally occurring isotopes of light atoms are radioactive. 
A)  In light atoms there are generally many more protons than neutrons. 
B)  In light atoms there are generally many more neutrons than protons. 
C)  In light atoms the number of protons and neutrons are nearly equal. 
D)  Most naturally occurring isotopes of light atoms are radioactive.

Question 3

Which of the following radioisotopes, which is an α emitter used in the treatment of prostate cancer, is delivered using a monoclonal antibody?

Accepted Answer

A)  Ac-225 
B)  Co-60 
C)  I-125 
D)  P-32 
A)  Ac-225 
B)  Co-60 
C)  I-125 
D)  P-32

Question 4

If the intensity of radiation 3.0 cm from a source is 300. mCi, what is the intensity 1.0 cm from the source?

Accepted Answer

A) 10. mCi 
B)  33 mCi 
C)  9.0 × 102 mCi 
D)  2.7 Ci 
A) 10. mCi 
B)  33 mCi 
C)  9.0 × 102 mCi 
D)  2.7 Ci

Question 5

The half-life of I-131 is 8.0 days. If a medical treatment involves a dose of 100. mg of I-131, how much of the isotope remains after 16 days?

Accepted Answer

A)  12.5 mg 
B)  25.0 mg 
C)  50.0 mg 
D)  75.0 mg 
A)  12.5 mg 
B)  25.0 mg 
C)  50.0 mg 
D)  75.0 mg

Question 6

Which of the following is true when comparing MRI with X-ray imaging?

Accepted Answer

A)  Both techniques are equally useful to image soft tissue. 
B)  Both techniques are equally useful to image hard tissue. 
C)  MRI is useful in imaging soft tissue and X-ray imaging is useful for imaging hard tissue. 
D)  MRI is useful in imaging hard tissue and X-ray imaging is useful for imaging soft tissue. 
A)  Both techniques are equally useful to image soft tissue. 
B)  Both techniques are equally useful to image hard tissue. 
C)  MRI is useful in imaging soft tissue and X-ray imaging is useful for imaging hard tissue. 
D)  MRI is useful in imaging hard tissue and X-ray imaging is useful for imaging soft tissue.

Question 7

Which of the following forms of radiation consists of negatively charged particles?

Accepted Answer

A)  α 
B)    
C)    
D)  none of these 
A)  α 
B)    
C)    
D)  none of these

Question 8

Which of the following radioisotopes can be used to scan for bone diseases?

Accepted Answer

A)  C-14 
B)  F-18 
C)  Sr-81 
D)  I-131 
A)  C-14 
B)  F-18 
C)  Sr-81 
D)  I-131

Question 9

Isotopes with which of the following half-lives are most useful in medical therapy?

Accepted Answer

A)  seconds to minutes 
B)  minutes to hours 
C)  hours to days 
D)  days to years 
A)  seconds to minutes 
B)  minutes to hours 
C)  hours to days 
D)  days to years

Question 10

Absorption of 1.0 rad of which of the following types of radiation will result in the greatest tissue damage?

Accepted Answer

A)  α 
B)  β 
C)  λ 
D)  None, they all result in the same amount of damage. 
A)  α 
B)  β 
C)  λ 
D)  None, they all result in the same amount of damage.

Question 11

In which of the following radiation detectors is a phosphor used?

Accepted Answer

A)  a Geiger-Müller counter 
B)  a proportional counter 
C)  a scintillation counter 
D)  all of these 
A)  a Geiger-Müller counter 
B)  a proportional counter 
C)  a scintillation counter 
D)  all of these

Question 12

Carbon-14 is a β emitter. What isotope is formed when 14C emits a β particle?

Accepted Answer

A)  14B 
B)  14N 
C)  14O 
D)  16O 
A)  14B 
B)  14N 
C)  14O 
D)  16O

Question 13

Which of the following elements is not likely to be produced by nuclear fission?

Accepted Answer

A)  Ba 
B)  H 
C)  Kr 
D)  Sr 
A)  Ba 
B)  H 
C)  Kr 
D)  Sr

Question 14

Examine the following graph for a particular isotope.  
-What is the half-life of this isotope?

Accepted Answer

A)  8 days 
B)  16 days 
C)  24 days 
D)  32 days 
A)  8 days 
B)  16 days 
C)  24 days 
D)  32 days

Question 15

Ionizing radiation is characterized by which of the following?

Accepted Answer

A)  its energy 
B)  its intensity 
C)  both a and b 
D)  neither a nor b 
A)  its energy 
B)  its intensity 
C)  both a and b 
D)  neither a nor b

Question 16

Thallium-201 decays by electron capture. What isotope is formed when 201Tl decays in this way?

Accepted Answer

A)  201Au 
B)  201Hg 
C)  201Pb 
D)  200Tl 
A)  201Au 
B)  201Hg 
C)  201Pb 
D)  200Tl

Question 17

Which of the following occur during an uncontrolled fission chain reaction?

Accepted Answer

A)  A heavy nucleus is broken into smaller nuclei. 
B)  More neutrons are produced than are consumed. 
C)  both a and b 
D)  neither a nor b 
A)  A heavy nucleus is broken into smaller nuclei. 
B)  More neutrons are produced than are consumed. 
C)  both a and b 
D)  neither a nor b

Question 18

In which of these diagnostic techniques is radiation from a radioisotope used?

Accepted Answer

A)  CT 
B)  MRI 
C)  PET 
D)  ultrasound 
A)  CT 
B)  MRI 
C)  PET 
D)  ultrasound

Question 19

Consider the following image.  
-Which of the following is characteristic of the reaction shown in the image?

Accepted Answer

A)  nuclear fission 
B)  chain reaction 
C)  source of nuclear power generation 
D)  All of these characterize the reaction. 
A)  nuclear fission 
B)  chain reaction 
C)  source of nuclear power generation 
D)  All of these characterize the reaction.

Question 20

Which of the following is the speed of light?

Accepted Answer

A)  3.0 × 108 cm/sec 
B)  3.0 × 108 m/sec 
C)  3.0 × 108 mi/sec 
D)  3.0 × 108 mi/hour 
A)  3.0 × 108 cm/sec 
B)  3.0 × 108 m/sec 
C)  3.0 × 108 mi/sec 
D)  3.0 × 108 mi/hour

Exam 9: Nuclear Chemistry

Which of the following forms of radiation is a form of electromagnetic radiation?

Which of the following statements is true?

Which of the following radioisotopes, which is an α emitter used in the treatment of prostate cancer, is delivered using a monoclonal antibody?

If the intensity of radiation 3.0 cm from a source is 300. mCi, what is the intensity 1.0 cm from the source?

The half-life of I-131 is 8.0 days. If a medical treatment involves a dose of 100. mg of I-131, how much of the isotope remains after 16 days?

Which of the following is true when comparing MRI with X-ray imaging?

Which of the following forms of radiation consists of negatively charged particles?

Which of the following radioisotopes can be used to scan for bone diseases?

Isotopes with which of the following half-lives are most useful in medical therapy?

Absorption of 1.0 rad of which of the following types of radiation will result in the greatest tissue damage?

In which of the following radiation detectors is a phosphor used?

Carbon-14 is a β emitter. What isotope is formed when 14C emits a β particle?

Which of the following elements is not likely to be produced by nuclear fission?

Examine the following graph for a particular isotope. -What is the half-life of this isotope?

Ionizing radiation is characterized by which of the following?

Thallium-201 decays by electron capture. What isotope is formed when 201Tl decays in this way?

Which of the following occur during an uncontrolled fission chain reaction?

In which of these diagnostic techniques is radiation from a radioisotope used?

Consider the following image. -Which of the following is characteristic of the reaction shown in the image?

Which of the following is the speed of light?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Carbon-14 is a β emitter. What isotope is formed when ¹⁴C emits a β particle?

Thallium-201 decays by electron capture. What isotope is formed when ²⁰¹Tl decays in this way?