Question 1

The neutron/proton ratio of stable nuclei increases with increasing atomic number .

Accepted Answer

A) True 
 B)False

Question 2

Positron emission causes a decrease of one in the atomic number.

Accepted Answer

A) True 
 B)False

Question 3

How much energy is produced when 0.082 g of matter is converted to energy?

Accepted Answer

A)  2.5 × 107  
B)  7.4 × 1018  
C)  7.4 × 1015  
D)  2.5 × 104  
E)  7.4 × 1012 
A)  2.5 × 107  
B)  7.4 × 1018  
C)  7.4 × 1015  
D)  2.5 × 104  
E)  7.4 × 1012

Question 4

0 e represents _.
- 1

Accepted Answer

Question 5

What is a phosphor?

Accepted Answer

A)  a bioluminescent substance 
B)  an alkali metal phosphide 
C)  a substance that thermally reduces to phosphorus 
D)  an oxide of phosphorus 
E)  a substance that emits light when excited by radiation 
A)  a bioluminescent substance 
B)  an alkali metal phosphide 
C)  a substance that thermally reduces to phosphorus 
D)  an oxide of phosphorus 
E)  a substance that emits light when excited by radiation

Question 6

Conversion of one nucleus into another was first demonstrated in 1919 by .

Accepted Answer

The answer of Conversion of one nucleus into another was...

Question 7

Radioactive decay is a first order kinetic process.

Accepted Answer

A) True 
 B)False

Question 8

What is the source of the tremendous energies produced by nuclear reactions?

Accepted Answer

conversion

Question 9

The basis for the carbon- 14 dating method is that

Accepted Answer

A)  living tissue will not absorb carbon- 14 but will absorb carbon- 12. 
B)  carbon- 14 is very unstable and is readily lost from the atmosphere. 
C)  the amount of carbon- 14 in all objects is the same. 
D)  the ratio of carbon- 14 to carbon- 12 in the atmosphere is a constant. 
E)  All of the above are correct. 
A)  living tissue will not absorb carbon- 14 but will absorb carbon- 12. 
B)  carbon- 14 is very unstable and is readily lost from the atmosphere. 
C)  the amount of carbon- 14 in all objects is the same. 
D)  the ratio of carbon- 14 to carbon- 12 in the atmosphere is a constant. 
E)  All of the above are correct.

Question 10

What is the rate constant (in min- 1) for the decay of this radionuclide?

Accepted Answer

A)  0.0242 
B)  30.9 
C)  0.0224 
D)  44.64 
E)  0.0324 
A)  0.0242 
B)  30.9 
C)  0.0224 
D)  44.64 
E)  0.0324

Question 11

Which one of the following is not true concerning radon?

Accepted Answer

A)  It has been implicated in lung cancer. 
B)  It is generated as uranium decays. 
C)  It decays to polonium- 218, an alpha emitter. 
D)  It decays by alpha emission. 
E)  It is chemically active in human lungs. 
A)  It has been implicated in lung cancer. 
B)  It is generated as uranium decays. 
C)  It decays to polonium- 218, an alpha emitter. 
D)  It decays by alpha emission. 
E)  It is chemically active in human lungs.

Question 12

When ionizing radiation enters the body, what is the predominant free radical produced
__________ ?

Accepted Answer

A)  H 
B)  OH 
C)  H3O 
D)  H2O 
E)  protein 
A)  H 
B)  OH 
C)  H3O 
D)  H2O 
E)  protein

Question 13

The relative biological effectiveness (RB
E) values of beta rays, gamma rays, and alpha rays are, respectively

Accepted Answer

The answer of The relative biological effectiveness (RB
E) values of...

Question 14

By what process does thorium- 230 decay to radium- 226 ?

Accepted Answer

A)  alpha emission 
B)  electron capture 
C)  positron emission 
D)  beta emission 
E)  gamma emission 
A)  alpha emission 
B)  electron capture 
C)  positron emission 
D)  beta emission 
E)  gamma emission

Question 15

Bombardment of uranium- 235 with a neutron generates tellurium- 135, 3 neutrons, and
)

Accepted Answer

A)  zirconium- 99. 
B)  zirconium- 98. 
C)  strontium- 99. 
D)  krypton- 101. 
E)  krypton- 103. 
A)  zirconium- 99. 
B)  zirconium- 98. 
C)  strontium- 99. 
D)  krypton- 101. 
E)  krypton- 103.

Question 16

In radioactive dating the ratio of carbon- 12 to carbon- 14 is related to the time of death of the animal or plant under investigation.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following correctly represents the transmutation in which neptunium- 239 is produced via bombardment of uranium- 238 with a neutron?

Accepted Answer

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

Question 18

On average, neutrons are produced by every fission of uranium- 235.

Accepted Answer

A)  4 
B)  1 
C)  3.5 
D)  2.4 
E)  2 
A)  4 
B)  1 
C)  3.5 
D)  2.4 
E)  2

Question 19

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. What is the binding energy (in J) of a   nucleus? (The mass of a cobalt- 60 nucleus is 59.9338 amu.)

Accepted Answer

A)  8.206 × 10- 11 
B)  9.117 × 10- 28 
C)  4.940 × 10- 13 
D)  2.735 × 10- 16 
E)  2.735 × 10- 19 
A)  8.206 × 10- 11 
B)  9.117 × 10- 28 
C)  4.940 × 10- 13 
D)  2.735 × 10- 16 
E)  2.735 × 10- 19

Question 20

Radium undergoes alpha decay. The product of this reaction also undergoes alpha decay. What is the product of this second decay reaction ?

Accepted Answer

A)  Hg 
B)  Th 
C)  Rn 
D)  Po 
E)  U 
A)  Hg 
B)  Th 
C)  Rn 
D)  Po 
E)  U

Exam 21: Nuclear Chemistry

The neutron/proton ratio of stable nuclei increases with increasing atomic number .

Positron emission causes a decrease of one in the atomic number.

How much energy is produced when 0.082 g of matter is converted to energy?

0 e represents _. - 1

What is a phosphor?

Conversion of one nucleus into another was first demonstrated in 1919 by .

Radioactive decay is a first order kinetic process.

What is the source of the tremendous energies produced by nuclear reactions?

The basis for the carbon- 14 dating method is that

What is the rate constant (in min- 1) for the decay of this radionuclide?

Which one of the following is not true concerning radon?

When ionizing radiation enters the body, what is the predominant free radical produced __________ ?

The relative biological effectiveness (RB E) values of beta rays, gamma rays, and alpha rays are, respectively

By what process does thorium- 230 decay to radium- 226 ?

Bombardment of uranium- 235 with a neutron generates tellurium- 135, 3 neutrons, and )

In radioactive dating the ratio of carbon- 12 to carbon- 14 is related to the time of death of the animal or plant under investigation.

Which of the following correctly represents the transmutation in which neptunium- 239 is produced via bombardment of uranium- 238 with a neutron?

On average, neutrons are produced by every fission of uranium- 235.

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. What is the binding energy (in J) of a nucleus? (The mass of a cobalt- 60 nucleus is 59.9338 amu.)

Radium undergoes alpha decay. The product of this reaction also undergoes alpha decay. What is the product of this second decay reaction ?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

⁰e represents _. - 1

What is the rate constant (in min^-¹) for the decay of this radionuclide?