Question 1

What is needed to balance the nuclear transmutation reaction below?   →   
+ ?

Accepted Answer

The answer of What is needed to balance the nuclear...

Question 2

A shorthand way of writing transmutation equations is to show the bombarding particle and the subsequent emitted particle in parentheses.Which particle is produced by

(p,α)?

Accepted Answer

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

Question 3

Radiation is dangerous to organisms because

Accepted Answer

A) all radionuclides are poisonous. 
B) it causes electrolysis of water in the cells. 
C) it causes nuclear reactions in the cells. 
D) it ionizes molecules in the cells. 
A) all radionuclides are poisonous. 
B) it causes electrolysis of water in the cells. 
C) it causes nuclear reactions in the cells. 
D) it ionizes molecules in the cells.

Question 4

When  
Is formed by bombardment of  
,what particle(s)was (were)used for the bombardment?

Accepted Answer

A) one α 
B) two β- 
C) 4 neutrons 
D) 2 protons 
A) one α 
B) two β- 
C) 4 neutrons 
D) 2 protons

Question 5

Which of the following isotopes is not used for medical purposes?

Accepted Answer

A) (3H) 
B) (14
C)  
C) (32P) 
D) (60Co) 
A) (3H) 
B) (14
C)  
C) (32P) 
D) (60Co)

Question 6

The mass defect for the formation of lithium-6 is 0.0343 g/mol.The binding energy for lithium-6 nuclei is ________ kJ/mol.

Accepted Answer

The answer of The mass defect for the formation of...

Question 7

In fusion reactions to make superheavy elements,energy is required to bring the two nuclei together and to form additional mass.How much energy must be converted into mass for the alpha bombardment of 253Es to form 257Md? (The isotopic masses are 253Es = 253.08294 amu,4He = 4.00260 amu,257Md = 257.09558 amu. )

Accepted Answer

A) 3)01 × 106 kJ/mol 
B) 9)04 × 108 kJ/mol 
C) 3)59 × 1011 kJ/mol 
D) 7)21 × 1011 kJ/mol 
A) 3)01 × 106 kJ/mol 
B) 9)04 × 108 kJ/mol 
C) 3)59 × 1011 kJ/mol 
D) 7)21 × 1011 kJ/mol

Question 8

Carbon-14 has a half-life of 5715 years.Currently living organisms decay at a rate of 15.3 disintegrations/ min per gram of carbon.If an archeological artifact has a carbon-14 decay rate of 12.0 disintegrations/ min per gram of carbon,the approximate age of the artifact is ________ years old.

Accepted Answer

The answer of Carbon-14 has a half-life of 5715 years.Currently...

Question 9

An archeological artifact was subjected to radiocarbon dating.The artifact showed a carbon-14 decay rate of 13.8 disintegrations/min per gram of carbon.Carbon-14 has a half-life of 5715 years,and currently living organisms decay at the rate of 15.3 disintegrations/min per gram of carbon.What is the approximate age of the artifact?

Accepted Answer

A) 257 years old 
B) 371 years old 
C) 591 years old 
D) 851 years old 
A) 257 years old 
B) 371 years old 
C) 591 years old 
D) 851 years old

Question 10

What is the mass change in grams for the reaction 2 NO2(g) $\rarr$ N2O4(g)? The enthalpy for the reaction is -57.2 kJ.

Accepted Answer

A) -6.36 × 10-13 g 
B) -6.36 × 10-10 g 
C) -1.91 × 10-7 g 
D) -1.91 × 10-4 g 
A) -6.36 × 10-13 g 
B) -6.36 × 10-10 g 
C) -1.91 × 10-7 g 
D) -1.91 × 10-4 g

Question 11

Relative to the amount of energy released in a typical chemical reaction,the amount of energy released in a typical fission reaction is about

Accepted Answer

A) the same. 
B) 10 times greater. 
C) 108 times greater 
D) 1010 times greater 
A) the same. 
B) 10 times greater. 
C) 108 times greater 
D) 1010 times greater

Question 12

The binding energy for lithium-7 nuclei is 3.79 × 1012 J/mol.The binding energy per nucleon for lithium-7 nuclei is ________ MeV/nucleon.

Accepted Answer

Question 13

Which of the following reactions correctly shows the transmutation of an element by neutron absorption followed by beta emission?

Accepted Answer

A)    +   →   +   
B)    +   →   +   
C)    +   →   +   
D)    +   →   +   
A)    +   →   +   
B)    +   →   +   
C)    +   →   +   
D)    +   →   +

Question 14

The mass defect for the chemical reaction shown below is ________ g.
2 F → F2 E = -159 kJ/mol

Accepted Answer

Question 15

The binding energy is defined as

Accepted Answer

A) the amount of energy absorbed when electrons are added to an ion. 
B) the amount of energy absorbed when protons and neutrons form a nucleus. 
C) the amount of energy released when electrons are removed from the atom. 
D) the amount of energy required to break apart a nucleus into individual protons and neutrons. 
A) the amount of energy absorbed when electrons are added to an ion. 
B) the amount of energy absorbed when protons and neutrons form a nucleus. 
C) the amount of energy released when electrons are removed from the atom. 
D) the amount of energy required to break apart a nucleus into individual protons and neutrons.

Question 16

Which one of the following is most penetrating?

Accepted Answer

A) alpha particles 
B) beta particles 
C) gamma rays 
D) positrons 
A) alpha particles 
B) beta particles 
C) gamma rays 
D) positrons

Question 17

A sievert is:

Accepted Answer

A) the amount of sample that undergoes 1 disintegration per second. 
B) the amount of sample that undergoes 3.7 × 1010 disintegrations per second. 
C) the amount of tissue damage done by radiation. 
D) equal to 0.01 J of energy absorbed per kilogram of tissue. 
A) the amount of sample that undergoes 1 disintegration per second. 
B) the amount of sample that undergoes 3.7 × 1010 disintegrations per second. 
C) the amount of tissue damage done by radiation. 
D) equal to 0.01 J of energy absorbed per kilogram of tissue.

Question 18

Which unit of radiation describes the amount of energy absorbed by a kilogram of tissue exposed to a radiation source?

Accepted Answer

A) becquerel 
B) curie 
C) rad 
D) rem 
A) becquerel 
B) curie 
C) rad 
D) rem

Question 19

The two reactions shown below are classified as (1)nuclear ________ and (2)nuclear ________.
(1)   
+   
→   
+   
+ 3   
(2)   
+   
→

Accepted Answer

The answer of The two reactions shown below are classified...

Question 20

A becquerel is:

Accepted Answer

A) the amount of sample that undergoes 1 disintegration per second. 
B) the amount of sample that undergoes 3.7 × 1010 disintegrations per second. 
C) the amount of tissue damage done by radiation. 
D) equal to 0.01 J of energy absorbed per kilogram of tissue. 
A) the amount of sample that undergoes 1 disintegration per second. 
B) the amount of sample that undergoes 3.7 × 1010 disintegrations per second. 
C) the amount of tissue damage done by radiation. 
D) equal to 0.01 J of energy absorbed per kilogram of tissue.

Exam 22: Nuclear Chemistry

What is needed to balance the nuclear transmutation reaction below? → + ?

A shorthand way of writing transmutation equations is to show the bombarding particle and the subsequent emitted particle in parentheses.Which particle is produced by (p,α)?

Radiation is dangerous to organisms because

When Is formed by bombardment of ,what particle(s)was (were)used for the bombardment?

Which of the following isotopes is not used for medical purposes?

The mass defect for the formation of lithium-6 is 0.0343 g/mol.The binding energy for lithium-6 nuclei is ________ kJ/mol.

Carbon-14 has a half-life of 5715 years.Currently living organisms decay at a rate of 15.3 disintegrations/ min per gram of carbon.If an archeological artifact has a carbon-14 decay rate of 12.0 disintegrations/ min per gram of carbon,the approximate age of the artifact is ________ years old.

What is the mass change in grams for the reaction 2 NO2(g) →\rarr→ N2O4(g)? The enthalpy for the reaction is -57.2 kJ.

Relative to the amount of energy released in a typical chemical reaction,the amount of energy released in a typical fission reaction is about

The binding energy for lithium-7 nuclei is 3.79 × 1012 J/mol.The binding energy per nucleon for lithium-7 nuclei is ________ MeV/nucleon.

Which of the following reactions correctly shows the transmutation of an element by neutron absorption followed by beta emission?

The mass defect for the chemical reaction shown below is ________ g. 2 F → F2 E = -159 kJ/mol

The binding energy is defined as

Which one of the following is most penetrating?

A sievert is:

Which unit of radiation describes the amount of energy absorbed by a kilogram of tissue exposed to a radiation source?

The two reactions shown below are classified as (1)nuclear ________ and (2)nuclear ________. (1) + → + + 3 (2) + →

A becquerel is:

Chemistry: Matter and Measurement

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Formulas, equations, and Moles

Reactions in Aqueous Solutions

Periodicity and the Atomic Structure of Atoms

Ionic Bonds and Some Main-Group Chemistry

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Transition Elements and Coordination Chemistry

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What is the mass change in grams for the reaction 2 NO₂(g) $\rarr$ N₂O₄(g)? The enthalpy for the reaction is -57.2 kJ.

The binding energy for lithium-7 nuclei is 3.79 × 10¹² J/mol.The binding energy per nucleon for lithium-7 nuclei is ________ MeV/nucleon.

The mass defect for the chemical reaction shown below is ________ g. 2 F → F₂ E = -159 kJ/mol

The two reactions shown below are classified as (1)nuclear and (2)nuclear . (1) + → + + 3 (2) + →