Question 1

Which of the following is most easily damaged by exposure to radiation?

Accepted Answer

A)  bacteria 
B)  human tissue 
C)  viruses 
D)  They are all equally easily damaged. 
A)  bacteria 
B)  human tissue 
C)  viruses 
D)  They are all equally easily damaged.

Question 2

When   is bombarded with   , a new element and four neutrons are produced. What isotope of the new element is produced by this reaction?

Accepted Answer

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

Question 3

Which of the following scientists is not closely associated with early studies of radioactivity?

Accepted Answer

A)  H. Becquerel 
B)  M. Curie 
C)  A. Einstein 
D)  E. Rutherford 
A)  H. Becquerel 
B)  M. Curie 
C)  A. Einstein 
D)  E. Rutherford

Question 4

Cobalt-60 is a γ emitter. What isotope is formed when 60Co emits γ radiation?

Accepted Answer

A)  60Mn 
B)  60Fe 
C)  60Co 
D)  60Ni 
A)  60Mn 
B)  60Fe 
C)  60Co 
D)  60Ni

Question 5

Which type of radioactive particles has the longest half-life?

Accepted Answer

A)  α emitters 
B)  β emitters 
C)  γ emitters 
D)  There is no relationship between half-life and the type of radiation. 
A)  α emitters 
B)  β emitters 
C)  γ emitters 
D)  There is no relationship between half-life and the type of radiation.

Question 6

Examine the following figure.  
-An isotope of technetium used in nuclear medicine undergoes the following reaction. Which line represents this type of radiation ?

Accepted Answer

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

Question 7

Which of the following is the relationship between the rem and the sievert?

Accepted Answer

A)  1 Sv = 100 rem 
B)  1 Sv = 1000 rem 
C)  1 Sv = 0.01 rem 
D)  1 Sv = 0.001 rem 
A)  1 Sv = 100 rem 
B)  1 Sv = 1000 rem 
C)  1 Sv = 0.01 rem 
D)  1 Sv = 0.001 rem

Question 8

Which of the following forms of radiation is identical to the nucleus of a helium atom?

Accepted Answer

A)  α 
B)    
C)    
D)  positron 
A)  α 
B)    
C)    
D)  positron

Question 9

Which isotope of carbon is frequently incorporated into drugs during the drug testing phase?

Accepted Answer

A)  C-11 
B)  C-12 
C)  C-13 
D)  C-14 
A)  C-11 
B)  C-12 
C)  C-13 
D)  C-14

Question 10

Which material is most commonly used to shield ourselves from radioactive materials?

Accepted Answer

A)  glass 
B)  iron 
C)  lead 
D)  paper 
A)  glass 
B)  iron 
C)  lead 
D)  paper

Question 11

Barium-122 has a half-life of 2 minutes. If 10.0 g of Ba-122 are produced in a nuclear reactor how much Ba-122 will remain 10 minutes after production ceases?

Accepted Answer

A)  2.50 g 
B)  1.25 g 
C)  0.625 g 
D)  0.313 g 
A)  2.50 g 
B)  1.25 g 
C)  0.625 g 
D)  0.313 g

Question 12

Radiation delivered by a source is measured by which of the following?

Accepted Answer

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

Question 13

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 14

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

Accepted Answer

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

Question 15

Which of the following forms of radiation consists of hydrogen nuclei?

Accepted Answer

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

Question 16

Which of the following forms of radiation is the least penetrating?

Accepted Answer

A)  α 
B)    
C)    
D)  positron 
A)  α 
B)    
C)    
D)  positron

Question 17

Which of the following is the correct relationship between the rad and the gray?

Accepted Answer

A)  1 rad = 100 Gy 
B)  1 rad = 1000 Gy 
C)  1 rad = 0.01 Gy 
D)  1 rad = 0.001 Gy 
A)  1 rad = 100 Gy 
B)  1 rad = 1000 Gy 
C)  1 rad = 0.01 Gy 
D)  1 rad = 0.001 Gy

Question 18

What is the atomic number of the element produced when an element with atomic number Z emits an α particle?

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 19

How many artificial radioisotopes have been synthesized in the laboratory?

Accepted Answer

A)  26 
B)  92 
C)  approximately 500 
D)  more than 1000 
A)  26 
B)  92 
C)  approximately 500 
D)  more than 1000

Question 20

What percentage of a radioactive sample remains after 5 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%

Exam 9: Nuclear Chemistry

Which of the following is most easily damaged by exposure to radiation?

When is bombarded with , a new element and four neutrons are produced. What isotope of the new element is produced by this reaction?

Which of the following scientists is not closely associated with early studies of radioactivity?

Cobalt-60 is a γ emitter. What isotope is formed when 60Co emits γ radiation?

Which type of radioactive particles has the longest half-life?

Examine the following figure. -An isotope of technetium used in nuclear medicine undergoes the following reaction. Which line represents this type of radiation ?

Which of the following is the relationship between the rem and the sievert?

Which of the following forms of radiation is identical to the nucleus of a helium atom?

Which isotope of carbon is frequently incorporated into drugs during the drug testing phase?

Which material is most commonly used to shield ourselves from radioactive materials?

Barium-122 has a half-life of 2 minutes. If 10.0 g of Ba-122 are produced in a nuclear reactor how much Ba-122 will remain 10 minutes after production ceases?

Radiation delivered by a source is measured by which of the following?

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

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

Which of the following forms of radiation consists of hydrogen nuclei?

Which of the following forms of radiation is the least penetrating?

Which of the following is the correct relationship between the rad and the gray?

What is the atomic number of the element produced when an element with atomic number Z emits an α particle?

How many artificial radioisotopes have been synthesized in the laboratory?

What percentage of a radioactive sample remains after 5 half-lives?

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

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Cobalt-60 is a γ emitter. What isotope is formed when ⁶⁰Co emits γ radiation?