Question 1

The half-life of 218Po is 3.1 minutes.How much of a 170 gram sample remains after 0.64 hours?

Accepted Answer

A) 0.032 g 
B) 150 g 
C) 31 g 
D) 4.7 × 10-10 g 
E) None of the original sample will remain. 
A) 0.032 g 
B) 150 g 
C) 31 g 
D) 4.7 × 10-10 g 
E) None of the original sample will remain.

Question 2

When living tissue is irradiated most of the energy is absorbed by ________.

Accepted Answer

The answer of When living tissue is irradiated most of...

Question 3

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

Accepted Answer

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

Question 4

What percentage of a sample remains after 50.0 min if it has a half-life of 20.4 min.?

Accepted Answer

A) 8.62 
B) 66.5 
C) 40.8 
D) 18.3 
E) 2.45 
A) 8.62 
B) 66.5 
C) 40.8 
D) 18.3 
E) 2.45

Question 5

What is the missing product from this reaction?

Accepted Answer

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

Question 6

In the formula k = 0.693/t1/2,k is the decay constant.

Accepted Answer

A) True 
 B)False

Question 7

The curie is a measure of the ________.

Accepted Answer

A) number of disintegrations per second of a radioactive substance 
B) total energy absorbed by an object exposed to a radioactive source 
C) lethal threshold for radiation exposure 
D) number of alpha particles emitted by exactly one gram of a radioactive substance 
E) None of the above is correct. 
A) number of disintegrations per second of a radioactive substance 
B) total energy absorbed by an object exposed to a radioactive source 
C) lethal threshold for radiation exposure 
D) number of alpha particles emitted by exactly one gram of a radioactive substance 
E) None of the above is correct.

Question 8

The relative biological effectiveness (RBE)values of beta rays,gamma rays,and alpha rays are ________,respectively.

Accepted Answer

The answer of The relative biological effectiveness (RBE)values of beta...

Question 9

In the nuclear transmutation represented by 
 ,the emitted particle is ________.

Accepted Answer

A) a beta particle 
B) an alpha particle 
C) a proton 
D) a positron 
E) a neutron 
A) a beta particle 
B) an alpha particle 
C) a proton 
D) a positron 
E) a neutron

Question 10

The basis for the carbon-14 dating method is that ________.

Accepted Answer

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

Question 11

In what type of radioactive decay does the atomic number of the product decrease by one?

Accepted Answer

A) positron emission 
B) corrosion 
C) alpha 
D) beta 
E) gamma 
A) positron emission 
B) corrosion 
C) alpha 
D) beta 
E) gamma

Question 12

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu.What is the binding energy per nucleon (in J)of a   Co nucleus? (The mass of a cobalt-60 nucleus is 59.9338 amu.Speed of light = 3.00 × 108 m/s.)

Accepted Answer

A) 1.37 × 10-12 
B) 2.49 × 10-12 
C) 3.04 × 10-12 
D) 9.43 × 10-13 
E) 7.01 × 10-14 
A) 1.37 × 10-12 
B) 2.49 × 10-12 
C) 3.04 × 10-12 
D) 9.43 × 10-13 
E) 7.01 × 10-14

Question 13

What drives the turbine in a nuclear power plant?

Accepted Answer

A) the moderator 
B) steam 
C) the control rods 
D) the primary coolant 
E) UF6 gas 
A) the moderator 
B) steam 
C) the control rods 
D) the primary coolant 
E) UF6 gas

Question 14

Which one of the following requires a particle accelerator to occur?

Accepted Answer

A)   
B)   
C)   
D)   
E) none of the above 
A)   
B)   
C)   
D)   
E) none of the above

Question 15

In balancing the nuclear reaction   U →   E +   He,the identity of element E is ________.

Accepted Answer

A) Pu 
B) Np 
C) U 
D) Pa 
E) Th 
A) Pu 
B) Np 
C) U 
D) Pa 
E) Th

Question 16

Radioactive decay is a first order kinetic process.

Accepted Answer

A) True 
 B)False

Question 17

At approximately what number of protons,or neutrons,does the 1:1 ratio of protons to neutrons start to produce unstable nuclei?

Accepted Answer

A) 10 
B) 20 
C) 30 
D) 50 
E) 80 
A) 10 
B) 20 
C) 30 
D) 50 
E) 80

Question 18

Which one of the following processes results in a decrease in the number of neutrons?

Accepted Answer

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

Question 19

The mass of a proton is 1.00728 amu and that of a neutron is   What is the binding energy per nucleon   of a   (The mass of a cobalt-59 nucleus is 58.9332 amu.The speed of light is 3.00 ×   m/s.)

Accepted Answer

A) 1.37 ×   J 
B) 4.87 × 1013 J 
C) 1.34 × 10-34 J 
D) 2.50 × 1012 J 
E) 4.80 × 1010 J 
A) 1.37 ×   J 
B) 4.87 × 1013 J 
C) 1.34 × 10-34 J 
D) 2.50 × 1012 J 
E) 4.80 × 1010 J

Question 20

What percentage of electricity generated in the U.S.is from commercial nuclear plants?

Accepted Answer

A) 1% 
B) 10% 
C) 19% 
D) 50% 
E) 90% 
A) 1% 
B) 10% 
C) 19% 
D) 50% 
E) 90%

Exam 21: Nuclear Chemistry

The half-life of 218Po is 3.1 minutes.How much of a 170 gram sample remains after 0.64 hours?

When living tissue is irradiated most of the energy is absorbed by ________.

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

What percentage of a sample remains after 50.0 min if it has a half-life of 20.4 min.?

What is the missing product from this reaction?

In the formula k = 0.693/t1/2,k is the decay constant.

The curie is a measure of the ________.

The relative biological effectiveness (RBE)values of beta rays,gamma rays,and alpha rays are ________,respectively.

In the nuclear transmutation represented by ,the emitted particle is ________.

The basis for the carbon-14 dating method is that ________.

In what type of radioactive decay does the atomic number of the product decrease by one?

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu.What is the binding energy per nucleon (in J)of a Co nucleus? (The mass of a cobalt-60 nucleus is 59.9338 amu.Speed of light = 3.00 × 108 m/s.)

What drives the turbine in a nuclear power plant?

Which one of the following requires a particle accelerator to occur?

In balancing the nuclear reaction U → E + He,the identity of element E is ________.

Radioactive decay is a first order kinetic process.

At approximately what number of protons,or neutrons,does the 1:1 ratio of protons to neutrons start to produce unstable nuclei?

Which one of the following processes results in a decrease in the number of neutrons?

The mass of a proton is 1.00728 amu and that of a neutron is What is the binding energy per nucleon of a (The mass of a cobalt-59 nucleus is 58.9332 amu.The speed of light is 3.00 × m/s.)

What percentage of electricity generated in the U.S.is from commercial nuclear plants?

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The half-life of ²¹⁸Po is 3.1 minutes.How much of a 170 gram sample remains after 0.64 hours?

In the formula k = 0.693/t_1/2,k is the decay constant.

The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu.What is the binding energy per nucleon (in J)of a Co nucleus? (The mass of a cobalt-60 nucleus is 59.9338 amu.Speed of light = 3.00 × 10⁸m/s.)