Question 1

According to the text, the U.S. federal government has given its approval for a new nuclear waste storage site. In which state will this storage site be located?

Accepted Answer

A)  Arizona 
B)  Montana 
C)  Nevada 
D)  Wyoming 
A)  Arizona 
B)  Montana 
C)  Nevada 
D)  Wyoming

Question 2

Which of the following equations represents the relationship between the wavelength (λ) and frequency (ν) of electromagnetic radiation?

Accepted Answer

A)  ν =cλ 
B)  ν =λ/c 
C)  ν =c/λ 
D)  ν =1/cλ 
A)  ν =cλ 
B)  ν =λ/c 
C)  ν =c/λ 
D)  ν =1/cλ

Question 3

Which of the following statements is true of a radioisotope that undergoes electron capture?

Accepted Answer

A)  Its mass number decreases by four units, and its atomic number decreases by two units. 
B)  Its mass number remains the same, but its atomic number increases by one unit. 
C)  Its mass number remains the same, but its atomic number decreases by one unit. 
D)  Its mass number and atomic number remain the same, and only its energy changes. 
A)  Its mass number decreases by four units, and its atomic number decreases by two units. 
B)  Its mass number remains the same, but its atomic number increases by one unit. 
C)  Its mass number remains the same, but its atomic number decreases by one unit. 
D)  Its mass number and atomic number remain the same, and only its energy changes.

Question 4

Krypton-85 has a half-life of 10 years. Identify the percentage of Kr-85 produced from the Chernobyl accident in 1986 that still remains radioactive in 2010.

Accepted Answer

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

Question 5

Which of the following units measures the energy delivered by a radiation source?

Accepted Answer

A)  the curie 
B)  the rad 
C)  the roentgen 
D)  all of these 
A)  the curie 
B)  the rad 
C)  the roentgen 
D)  all of these

Question 6

A radioisotope with atomic number Z emits a positron. Identify the atomic number of the radioisotope formed by the positron emission.

Accepted Answer

A)  Z − 2 
B)  Z − 1 
C)  Z + 1 
D)  Z + 2 
A)  Z − 2 
B)  Z − 1 
C)  Z + 1 
D)  Z + 2

Question 7

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 8

Identify the percentage of a radioactive sample that remains after five half-lives.

Accepted Answer

A)  6.25% 
B)  3.13% 
C)  1.56% 
D)  0.781% 
A)  6.25% 
B)  3.13% 
C)  1.56% 
D)  0.781%

Question 9

Why is boron used in nuclear reactors?

Accepted Answer

A)  Boron absorbs neutrons to help control the rate of reaction. 
B)  Boron is the fissionable fuel used in nuclear power plants. 
C)  Boron isotopes provide neutrons for bombarding the fissionable material. 
D)  None of these is correct. 
A)  Boron absorbs neutrons to help control the rate of reaction. 
B)  Boron is the fissionable fuel used in nuclear power plants. 
C)  Boron isotopes provide neutrons for bombarding the fissionable material. 
D)  None of these is correct.

Question 10

Which of the following is the SI unit of radiation activity?

Accepted Answer

A)  the becquerel 
B)  the curie 
C)  the millicurie 
D)  the roentgen 
A)  the becquerel 
B)  the curie 
C)  the millicurie 
D)  the roentgen

Question 11

A radioisotope with atomic number Z undergoes electron capture. Identify the atomic number of the radioisotope formed by the electron capture.

Accepted Answer

A)  Z − 2 
B)  Z − 1 
C)  Z + 1 
D)  Z + 2 
A)  Z − 2 
B)  Z − 1 
C)  Z + 1 
D)  Z + 2

Question 12

Which of the following is a long-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

Exam 9: Nuclear Chemistry

According to the text, the U.S. federal government has given its approval for a new nuclear waste storage site. In which state will this storage site be located?

Which of the following equations represents the relationship between the wavelength (λ) and frequency (ν) of electromagnetic radiation?

Which of the following statements is true of a radioisotope that undergoes electron capture?

Krypton-85 has a half-life of 10 years. Identify the percentage of Kr-85 produced from the Chernobyl accident in 1986 that still remains radioactive in 2010.

Which of the following units measures the energy delivered by a radiation source?

A radioisotope with atomic number Z emits a positron. Identify the atomic number of the radioisotope formed by the positron emission.

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

Identify the percentage of a radioactive sample that remains after five half-lives.

Why is boron used in nuclear reactors?

Which of the following is the SI unit of radiation activity?

A radioisotope with atomic number Z undergoes electron capture. Identify the atomic number of the radioisotope formed by the electron capture.

Which of the following is a long-term problem associated with properly functioning nuclear reactors?

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, Alkynes, and Aromatic Compounds

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

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