Question 1

Which of the following is true of the transuranium elements?

Accepted Answer

A)  Some are stable and some are unstable. 
B)  They are all stable. 
C)  They are all unstable, but all have long half-lives. 
D)  They are all unstable and most have short half-lives. 
A)  Some are stable and some are unstable. 
B)  They are all stable. 
C)  They are all unstable, but all have long half-lives. 
D)  They are all unstable and most have short half-lives.

Question 2

Which isotope of phosphorous is most likely to be a β emitter?

Accepted Answer

A)  29P 
B)  30P 
C)  31P 
D)  32P 
A)  29P 
B)  30P 
C)  31P 
D)  32P

Question 3

At which of the following sites did a fission reactor accident occur?

Accepted Answer

A)  Hanford 
B)  Indian Point 
C)  Oak Ridge 
D)  Three Mile Island 
A)  Hanford 
B)  Indian Point 
C)  Oak Ridge 
D)  Three Mile Island

Question 4

Which of the following is the longest term problem associated with properly functioning nuclear reactors?

Accepted Answer

A)  the danger of nuclear meltdown 
B)  radioactive fallout 
C)  storage of radioactive fission products 
D)  thermal pollution 
A)  the danger of nuclear meltdown 
B)  radioactive fallout 
C)  storage of radioactive fission products 
D)  thermal pollution

Question 5

Tritium, 3H, is a β emitter. What isotope is formed when 3H emits a β particle?

Accepted Answer

A)  1H 
B)  2H 
C)  3He 
D)  4He 
A)  1H 
B)  2H 
C)  3He 
D)  4He

Question 6

Which of the following correctly relates the becquerel to the curie?

Accepted Answer

A)  3.7 × 1010 Bq = 1 Ci 
B)  3.7 × 107 Bq = 1 Ci 
C)  2.7 × 10-8 Bq = 1 Ci 
D)  2.7 × 10-11 Bq = 1 Ci 
A)  3.7 × 1010 Bq = 1 Ci 
B)  3.7 × 107 Bq = 1 Ci 
C)  2.7 × 10-8 Bq = 1 Ci 
D)  2.7 × 10-11 Bq = 1 Ci

Question 7

Krypton-85 has a half-life of 10 years. Approximately what percentage of Kr-85 produced from nuclear testing in 1956 still remains radioactive today?

Accepted Answer

A)  25% 
B)  12% 
C)  6% 
D)  3% 
A)  25% 
B)  12% 
C)  6% 
D)  3%

Question 8

Transmutation is caused by which of the following radioactive processes?

Accepted Answer

A)  α emission 
B)  γ emission 
C)  both a and b 
D)  neither a nor b 
A)  α emission 
B)  γ emission 
C)  both a and b 
D)  neither a nor b

Question 9

Which of the following is the name of the free radical formed after radiation knocks an electron out of a water molecule?

Accepted Answer

A)  hydronium 
B)  hydroxide 
C)  hydroxium 
D)  hydroxyl 
A)  hydronium 
B)  hydroxide 
C)  hydroxium 
D)  hydroxyl

Question 10

Which of the following radioisotopes is used external to the body to deliver radiation to cancer cells?

Accepted Answer

A)  C-14 
B)  Co-60 
C)  I-131 
D)  P-32 
A)  C-14 
B)  Co-60 
C)  I-131 
D)  P-32

Question 11

Which of the following is true regarding the fuel for a fission reaction?

Accepted Answer

A)  Any isotope of uranium can be used. 
B)  Only U-235 can be used. 
C)  Only U-238 can be used. 
D)  Uranium is not a suitable fuel. 
A)  Any isotope of uranium can be used. 
B)  Only U-235 can be used. 
C)  Only U-238 can be used. 
D)  Uranium is not a suitable fuel.

Question 12

Examine the following figure.  
-Which of the lines represent radiation with the largest energy range?

Accepted Answer

A)  A 
B)  B 
C)  C 
A)  A 
B)  B 
C)  C

Question 13

Approximately how many stable isotopes have been identified?

Accepted Answer

A)  92 
B)  118 
C)  264 
D)  more than 300 
A)  92 
B)  118 
C)  264 
D)  more than 300

Question 14

For a specific delivered dose of "soft" x-rays, which type of material has the largest absorbed dose?

Accepted Answer

A)  bone 
B)  muscle 
C)  water 
D)  They all have the same absorbed dose. 
A)  bone 
B)  muscle 
C)  water 
D)  They all have the same absorbed dose.

Question 15

A single whole body exposure to what dose of radiation will almost invariably lead to a person's death in a relatively short time?

Accepted Answer

A)  25 rem 
B)  100 rem 
C)  300 rem 
D)  600 rem 
A)  25 rem 
B)  100 rem 
C)  300 rem 
D)  600 rem

Question 16

Which of the following statements is true?

Accepted Answer

A)  In heavy atoms there are generally many more protons than neutrons. 
B)  In heavy atoms there are generally many more neutrons than protons. 
C)  In heavy atoms the number of protons and neutrons are nearly equal. 
D)  Most heavy atoms do not exist in a number of isotopic forms. 
A)  In heavy atoms there are generally many more protons than neutrons. 
B)  In heavy atoms there are generally many more neutrons than protons. 
C)  In heavy atoms the number of protons and neutrons are nearly equal. 
D)  Most heavy atoms do not exist in a number of isotopic forms.

Question 17

What happens to the atomic number of an element when an α particle is emitted?

Accepted Answer

A)  increases 
B)  decreases 
C)  remains constant 
A)  increases 
B)  decreases 
C)  remains constant

Question 18

Which isotope of oxygen is most likely to be a positron emitter?

Accepted Answer

A)  15O 
B)  16O 
C)  17O 
D)  19O 
A)  15O 
B)  16O 
C)  17O 
D)  19O

Question 19

Which of the following statements is true of nuclear fission?

Accepted Answer

A)  The mass of the products is greater than the mass of the reactants, and energy is absorbed. 
B)  The mass of the products is greater than the mass of the reactants, and energy is released. 
C)  The mass of the products is less than the mass of the reactants, and energy is absorbed. 
D)  The mass of the products is less than the mass of the reactants, and energy is released. 
A)  The mass of the products is greater than the mass of the reactants, and energy is absorbed. 
B)  The mass of the products is greater than the mass of the reactants, and energy is released. 
C)  The mass of the products is less than the mass of the reactants, and energy is absorbed. 
D)  The mass of the products is less than the mass of the reactants, and energy is released.

Question 20

Which isotope of phosphorous is most likely to be a positron emitter?

Accepted Answer

A)  29P 
B)  30P 
C)  31P 
D)  32P 
A)  29P 
B)  30P 
C)  31P 
D)  32P

Exam 9: Nuclear Chemistry

Which of the following is true of the transuranium elements?

Which isotope of phosphorous is most likely to be a β emitter?

At which of the following sites did a fission reactor accident occur?

Which of the following is the longest term problem associated with properly functioning nuclear reactors?

Tritium, 3H, is a β emitter. What isotope is formed when 3H emits a β particle?

Which of the following correctly relates the becquerel to the curie?

Krypton-85 has a half-life of 10 years. Approximately what percentage of Kr-85 produced from nuclear testing in 1956 still remains radioactive today?

Transmutation is caused by which of the following radioactive processes?

Which of the following is the name of the free radical formed after radiation knocks an electron out of a water molecule?

Which of the following radioisotopes is used external to the body to deliver radiation to cancer cells?

Which of the following is true regarding the fuel for a fission reaction?

Examine the following figure. -Which of the lines represent radiation with the largest energy range?

Approximately how many stable isotopes have been identified?

For a specific delivered dose of "soft" x-rays, which type of material has the largest absorbed dose?

A single whole body exposure to what dose of radiation will almost invariably lead to a person's death in a relatively short time?

Which of the following statements is true?

What happens to the atomic number of an element when an α particle is emitted?

Which isotope of oxygen is most likely to be a positron emitter?

Which of the following statements is true of nuclear fission?

Which isotope of phosphorous is most likely to be a positron emitter?

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

Tritium, ³H, is a β emitter. What isotope is formed when ³H emits a β particle?