Question 1

The radioisotope   will decay through

Accepted Answer

A)  .F1F1F1S1F1F1F10 decay. 
B)  .F1F1F1S1F1F1F10 decay. 
C)  .F1F1F1S1F1F1F10 decay. 
D)  electron capture. 
E)  spontaneous fission. 
A)  .F1F1F1S1F1F1F10 decay. 
B)  .F1F1F1S1F1F1F10 decay. 
C)  .F1F1F1S1F1F1F10 decay. 
D)  electron capture. 
E)  spontaneous fission.

Question 2

It is believed that two carbon-12 nuclei can react in the core of a supergiant star to form sodium-23 and hydrogen-1. Calculate the energy released from this reaction for each mole of hydrogen formed. The masses of carbon-12, sodium-23, and hydrogen-1 are 12.0000 amu, 22.989767 amu, and 1.007825, respectively.

Accepted Answer

A)  2.16 × 1014 kJ 
B)  2.16 × 1011 kJ 
C)  2.16 × 108 kJ 
D)  2.16 × 105 kJ 
E)  none of the above 
A)  2.16 × 1014 kJ 
B)  2.16 × 1011 kJ 
C)  2.16 × 108 kJ 
D)  2.16 × 105 kJ 
E)  none of the above

Question 3

Which one of the following equations correctly represents positron decay of   ?

Accepted Answer

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

Question 4

Briefly, explain the relationship between the rad and the rem as units of radiation dosage.

Accepted Answer

The rad (radiation absorbed dose) measur

Question 5

The nuclide Pb-210 undergoes three successive decays (beta, alpha, and beta, respectively) to form a stable nuclide. What are the three nuclides which form from Pb-210 in this decay series?

Accepted Answer

A)  Tl-210, Au-206, Pt-206 
B)  Bi-210, Tl-206, Pb-206 
C)  Pb-209, Hg-205, Hg-204 
D)  Bi-210, Pb-206, Bi-206 
E)  none of the above 
A)  Tl-210, Au-206, Pt-206 
B)  Bi-210, Tl-206, Pb-206 
C)  Pb-209, Hg-205, Hg-204 
D)  Bi-210, Pb-206, Bi-206 
E)  none of the above

Question 6

Identify the missing species in the following nuclear transmutation.

Accepted Answer

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

Question 7

So-called "magic numbers" of particles are thought to convey extra stability to certain nuclei. These magic numbers refer to which of the following particles?

Accepted Answer

A)  protons only 
B)  electrons only 
C)  positrons only 
D)  neutrons only 
E)  protons and neutrons 
A)  protons only 
B)  electrons only 
C)  positrons only 
D)  neutrons only 
E)  protons and neutrons

Question 8

The masses of a potassium-40 atom, a proton, and a neutron are 39.963999 amu, 1.007825 amu, and 1.008665 amu, respectively. Calculate to four significant figures
a. the mass defect in amu, and
b. the energy released in MeV/nucleon, in the formation of   from the appropriate number of protons and neutrons.

Accepted Answer

a. 0.3666

Question 9

Write a complete, balanced equation to represent the beta decay of thallium-207.

Accepted Answer

The answer of Write a complete, balanced equation to represent...

Question 10

An isotope with a high value of N/Z will tend to decay through

Accepted Answer

A)  .F1F1F1S1F1F1F10 decay. 
B)  .F1F1F1S1F1F1F10 decay. 
C)  positron decay. 
D)  electron capture. 
E)  .F1F1F1S1F1F1F10 decay. 
A)  .F1F1F1S1F1F1F10 decay. 
B)  .F1F1F1S1F1F1F10 decay. 
C)  positron decay. 
D)  electron capture. 
E)  .F1F1F1S1F1F1F10 decay.

Question 11

Write a complete, balanced equation to represent the formation of manganese-55 by the beta decay of another nuclide.

Accepted Answer

The answer of Write a complete, balanced equation to represent...

Question 12

An 85-kg person exposed to barium-141 receives 2.5 × 105 F1F1F1S1F1F1F10 particles, each with an energy of 5.2 × 10-13 J. How many rads does the person receive?

Accepted Answer

A)  2.4 × 10-20 
B)  1.5 × 10-7 
C)  1.8 × 10-16 
D)  6.1 × 10-15 
E)  none of the above 
A)  2.4 × 10-20 
B)  1.5 × 10-7 
C)  1.8 × 10-16 
D)  6.1 × 10-15 
E)  none of the above

Question 13

Select the nuclide that completes the following nuclear reaction.

Accepted Answer

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

Question 14

In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon. A charcoal sample from an archaeological site has a C-14 disintegration rate of 9.16 atoms per minute per gram of carbon. Estimate the age of this sample. The half-life of C-14 is 5730 years.

Accepted Answer

A)  3170 years 
B)  3430 years 
C)  4020 years 
D)  4790 years 
E)  6750 years 
A)  3170 years 
B)  3430 years 
C)  4020 years 
D)  4790 years 
E)  6750 years

The radioisotope will decay through

Which one of the following equations correctly represents positron decay of ?

Briefly, explain the relationship between the rad and the rem as units of radiation dosage.

The nuclide Pb-210 undergoes three successive decays (beta, alpha, and beta, respectively) to form a stable nuclide. What are the three nuclides which form from Pb-210 in this decay series?

Identify the missing species in the following nuclear transmutation.

So-called "magic numbers" of particles are thought to convey extra stability to certain nuclei. These magic numbers refer to which of the following particles?

Write a complete, balanced equation to represent the beta decay of thallium-207.

An isotope with a high value of N/Z will tend to decay through

Write a complete, balanced equation to represent the formation of manganese-55 by the beta decay of another nuclide.

An 85-kg person exposed to barium-141 receives 2.5 × 10⁵  particles, each with an energy of 5.2 × 10^-13 J. How many rads does the person receive?

Select the nuclide that completes the following nuclear reaction.

In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon. A charcoal sample from an archaeological site has a C-14 disintegration rate of 9.16 atoms per minute per gram of carbon. Estimate the age of this sample. The half-life of C-14 is 5730 years.

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

The Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Filters

Exam 24: Nuclear Reactions and Their Applications

The radioisotope will decay through

Which one of the following equations correctly represents positron decay of ?

Briefly, explain the relationship between the rad and the rem as units of radiation dosage.

The nuclide Pb-210 undergoes three successive decays (beta, alpha, and beta, respectively) to form a stable nuclide. What are the three nuclides which form from Pb-210 in this decay series?

Identify the missing species in the following nuclear transmutation.

So-called "magic numbers" of particles are thought to convey extra stability to certain nuclei. These magic numbers refer to which of the following particles?

Write a complete, balanced equation to represent the beta decay of thallium-207.

An isotope with a high value of N/Z will tend to decay through

Write a complete, balanced equation to represent the formation of manganese-55 by the beta decay of another nuclide.

An 85-kg person exposed to barium-141 receives 2.5 × 105  particles, each with an energy of 5.2 × 10-13 J. How many rads does the person receive?

Select the nuclide that completes the following nuclear reaction.

In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon. A charcoal sample from an archaeological site has a C-14 disintegration rate of 9.16 atoms per minute per gram of carbon. Estimate the age of this sample. The half-life of C-14 is 5730 years.

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

The Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Filters

An 85-kg person exposed to barium-141 receives 2.5 × 10⁵  particles, each with an energy of 5.2 × 10^-13 J. How many rads does the person receive?