Question 1

Which type of nuclear process requires an extremely high temperature (millions of degrees)?

Accepted Answer

A) beta decay 
B) fission reaction 
C) fusion reaction 
D) alpha decay 
E) positron emission 
A) beta decay 
B) fission reaction 
C) fusion reaction 
D) alpha decay 
E) positron emission

Question 2

In the following reaction, identify X.

Accepted Answer

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

Question 3

Balance the equation

Accepted Answer

The answer of Balance the equation  ...

Question 4

Balance the equation

Accepted Answer

The answer of Balance the equation  ...

Question 5

What is the missing symbol in this plutonium fission reaction?   Pu +   n   ______ +   Sr + 3   n

Accepted Answer

A)    Ba 
B)    $\beta$ 
C)    Xe 
D)    Sr 
E)    Ba 
A)    Ba 
B)    $\beta$ 
C)    Xe 
D)    Sr 
E)    Ba

Question 6

Which of the following nuclear processes results in an increase in the number of neutrons in the product element? I.Alpha emission
II.Beta emission
III.Positron emission
IV.Electron capture

Accepted Answer

A) I and II 
B) III and IV 
C) I, II, and III 
D) II, III, and IV 
E) I, II, III, and IV 
A) I and II 
B) III and IV 
C) I, II, and III 
D) II, III, and IV 
E) I, II, III, and IV

Question 7

Protactinium-234 has a half-life of 1 minute.How much of a 400.g sample protactinium would remain after 2 minutes?

Accepted Answer

The answer of Protactinium-234 has a half-life of 1 minute.How...

Question 8

Complete and balance the nuclear equation

Accepted Answer

The answer of Complete and balance the nuclear equation ...

Question 9

What is the nuclear binding energy per nucleon, in joules, for   (atomic mass 24.985839 amu). [Data:   (atomic mass)= 1.007825 amu;   (mass)= 1.008665 amu; 1 kg = 6.022 × 1026 amu; c = 3.00 × 108 m/s]

Accepted Answer

A) 0.22076 J/nucleon 
B) 3.30 × 10-11 J/nucleon 
C) 1.32 × 10-12 J/nucleon 
D) 0.999 J/nucleon 
E) None of the above. 
A) 0.22076 J/nucleon 
B) 3.30 × 10-11 J/nucleon 
C) 1.32 × 10-12 J/nucleon 
D) 0.999 J/nucleon 
E) None of the above.

Question 10

A rock contains 0.37 mg of Pb-206 and 0.95 mg of U-238.Approximately how many U-238 atoms were in the rock when it was formed billions of years ago? (The half life for 238U $\rarr$ 206Pb is 4.5 × 109 yr.)

Accepted Answer

A) 1.32 atoms 
B) 5.8 × 10-6 atoms 
C) 2.4 × 1018 atoms 
D) 3.5 × 1018 atoms 
E) 3.5 × 1021 atoms 
A) 1.32 atoms 
B) 5.8 × 10-6 atoms 
C) 2.4 × 1018 atoms 
D) 3.5 × 1018 atoms 
E) 3.5 × 1021 atoms

Question 11

Predict which nucleus is less stable,   or    
.

Accepted Answer

Question 12

Balance the equation   Th     + ? .

Accepted Answer

The answer of Balance the equation   Th ...

Question 13

Calculate the binding energy per nucleon of an Al-27 nucleus given the following masses:   : 26.981541 amu;   : 1.007838 amu;   : 1.008665 amu.

Accepted Answer

The answer of Calculate the binding energy per nucleon of...

Question 14

The half-life of 90Sr is 29 years.What fraction of the atoms in a sample of 90Sr would remain 175 years later?

Accepted Answer

A) 0.17 
B) 0.12 
C) 0.062 
D) 0.015 
E) 0.50 
A) 0.17 
B) 0.12 
C) 0.062 
D) 0.015 
E) 0.50

Question 15

Consider the following decay series:   What is the symbol for the product labeled as Z?

Accepted Answer

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

Question 16

The only stable isotope of fluorine is   F.What type of radioactivity would you expect from the isotope   F, which has one fewer neutron?

Accepted Answer

A)    p 
B)    n 
C)    
D)    
E)    He 
A)    p 
B)    n 
C)    
D)    
E)    He

Question 17

As a result of alpha emission, the product nucleus is

Accepted Answer

A) one atomic number lower than the original element. 
B) two atomic numbers higher than the original element. 
C) one atomic number higher than the original element. 
D) two atomic numbers lower than the original element. 
E) four atomic numbers lower than the original element. 
A) one atomic number lower than the original element. 
B) two atomic numbers higher than the original element. 
C) one atomic number higher than the original element. 
D) two atomic numbers lower than the original element. 
E) four atomic numbers lower than the original element.

Question 18

Beta particles are identical to

Accepted Answer

A) protons. 
B) helium atoms. 
C) hydrogen atoms. 
D) helium nuclei. 
E) electrons. 
A) protons. 
B) helium atoms. 
C) hydrogen atoms. 
D) helium nuclei. 
E) electrons.

Question 19

Consider the following decay series:   Which type of nuclear process occurs in steps c and d, respectively?

Accepted Answer

A) ($\alpha$ emission, $\alpha$ emission) 
B) ($\alpha$ emission, $\beta$  emission) 
C) ($\beta$  emission, positron emission) 
D) ($\beta$  emission, $\alpha$emission) 
E) (positron emission, $\beta$  emission) 
A) ($\alpha$ emission, $\alpha$ emission) 
B) ($\alpha$ emission, $\beta$  emission) 
C) ($\beta$  emission, positron emission) 
D) ($\beta$  emission, $\alpha$emission) 
E) (positron emission, $\beta$  emission)

Question 20

Which of the following nuclear processes results in an increase of atomic number in the product element formed? I.Alpha emission
II.Beta emission
III.Positron emission
IV.Electron capture

Accepted Answer

A) I and II 
B) III and IV 
C) I, II, and III 
D) II only 
E) IV only 
A) I and II 
B) III and IV 
C) I, II, and III 
D) II only 
E) IV only

Exam 19: Nuclear Chemistry

Which type of nuclear process requires an extremely high temperature (millions of degrees)?

In the following reaction, identify X.

Balance the equation

Balance the equation

What is the missing symbol in this plutonium fission reaction? Pu + n ______ + Sr + 3 n

Which of the following nuclear processes results in an increase in the number of neutrons in the product element? I.Alpha emission II.Beta emission III.Positron emission IV.Electron capture

Protactinium-234 has a half-life of 1 minute.How much of a 400.g sample protactinium would remain after 2 minutes?

Complete and balance the nuclear equation

What is the nuclear binding energy per nucleon, in joules, for (atomic mass 24.985839 amu). [Data: (atomic mass)= 1.007825 amu; (mass)= 1.008665 amu; 1 kg = 6.022 × 1026 amu; c = 3.00 × 108 m/s]

A rock contains 0.37 mg of Pb-206 and 0.95 mg of U-238.Approximately how many U-238 atoms were in the rock when it was formed billions of years ago? (The half life for 238U →\rarr→ 206Pb is 4.5 × 109 yr.)

Predict which nucleus is less stable, or .

Balance the equation Th + ? .

Calculate the binding energy per nucleon of an Al-27 nucleus given the following masses: : 26.981541 amu; : 1.007838 amu; : 1.008665 amu.

The half-life of 90Sr is 29 years.What fraction of the atoms in a sample of 90Sr would remain 175 years later?

Consider the following decay series: What is the symbol for the product labeled as Z?

The only stable isotope of fluorine is F.What type of radioactivity would you expect from the isotope F, which has one fewer neutron?

As a result of alpha emission, the product nucleus is

Beta particles are identical to

Consider the following decay series: Which type of nuclear process occurs in steps c and d, respectively?

Which of the following nuclear processes results in an increase of atomic number in the product element formed? I.Alpha emission II.Beta emission III.Positron emission IV.Electron capture

Chemistry: the Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

What is the nuclear binding energy per nucleon, in joules, for (atomic mass 24.985839 amu). [Data: (atomic mass)= 1.007825 amu; (mass)= 1.008665 amu; 1 kg = 6.022 × 10²⁶ amu; c = 3.00 × 10⁸ m/s]

A rock contains 0.37 mg of Pb-206 and 0.95 mg of U-238.Approximately how many U-238 atoms were in the rock when it was formed billions of years ago? (The half life for ²³⁸U $\rarr$ ²⁰⁶Pb is 4.5 × 10⁹ yr.)

The half-life of ⁹⁰Sr is 29 years.What fraction of the atoms in a sample of ⁹⁰Sr would remain 175 years later?