Question 1

The nuclear binding energy for cobalt-59 is the energy released when:

Accepted Answer

A) 27 protons and 32 neutrons form cobalt-59 
B) iron-56 and 2 protons form cobalt-59 
C) 27 protons and 27 neutrons form cobalt-59 
D) cobalt-58 and 1 neutron form cobalt -59 
A) 27 protons and 32 neutrons form cobalt-59 
B) iron-56 and 2 protons form cobalt-59 
C) 27 protons and 27 neutrons form cobalt-59 
D) cobalt-58 and 1 neutron form cobalt -59

Question 2

Choose the INCORRECT statement.

Accepted Answer

A) Bi-209 has the highest mass number and atomic number of any stable isotope. 
B) The radioactive decay law is A = θN. 
C) Radioactive decay is a first-order process. 
D) The half-life is the length of time for all atoms of an isotope to decay. 
E) Wood can be dated by radiocarbon dating. 
A) Bi-209 has the highest mass number and atomic number of any stable isotope. 
B) The radioactive decay law is A = θN. 
C) Radioactive decay is a first-order process. 
D) The half-life is the length of time for all atoms of an isotope to decay. 
E) Wood can be dated by radiocarbon dating.

Question 3

There are three radioactive series: the thorium series,which begins with 232Th,the actinium series which starts with 235U and the uranium series which starts with what isotope?

Accepted Answer

A) (223Fr) 
B) (238U) 
C) (221Rn) 
D) (214Pb) 
E) (232Th) 
A) (223Fr) 
B) (238U) 
C) (221Rn) 
D) (214Pb) 
E) (232Th)

Question 4

Which nuclide below is most likely to decay by electron capture?

Accepted Answer

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

Question 5

The most massive particle is:

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) positron 
E) neutron 
A) alpha 
B) beta 
C) gamma 
D) positron 
E) neutron

Question 6

________ +   Β → 37Cl.

Accepted Answer

A) (37Ar) 
B) (38Ar) 
C) (38Cl) 
D) (37K) 
E) (36K) 
A) (37Ar) 
B) (38Ar) 
C) (38Cl) 
D) (37K) 
E) (36K)

Question 7

Radioactive nuclides that lie above the band of stability become more stable by positron emission.

Accepted Answer

A) True 
 B)False

Question 8

Alpha particle bombardment of 27Al followed by neutron emission produces ________.

Accepted Answer

A) (30P) 
B) (30Si) 
C) (31Si) 
D) (29P) 
E) (32P) 
A) (30P) 
B) (30Si) 
C) (31Si) 
D) (29P) 
E) (32P)

Question 9

Complete the following fusion reaction: 
  H +   H

Accepted Answer

A)    He 
B)    He +   n 
C)    H +   H 
D) 3   n + 2   H 
E) 5   n + 2   e 
A)    He 
B)    He +   n 
C)    H +   H 
D) 3   n + 2   H 
E) 5   n + 2   e

Question 10

Radioactive decay is:

Accepted Answer

A) temperature independent 
B) a second-order process 
C) a zero-order process 
D) a process with a large activation energy 
A) temperature independent 
B) a second-order process 
C) a zero-order process 
D) a process with a large activation energy

Question 11

Identify a reaction that follows a different decay process than the rest.

Accepted Answer

A)    U →   Ac 
B)    Ra →   Rn 
C)    Cm →   Pu 
D)    Po →   Pb 
E)    Rn →   Po 
A)    U →   Ac 
B)    Ra →   Rn 
C)    Cm →   Pu 
D)    Po →   Pb 
E)    Rn →   Po

Question 12

Choose the correct word to describe the nuclear stability of the following isotope.If it is radioactive,choose the most likely mode of decay.
238U

Accepted Answer

A) radioactive,beta 
B) radioactive,fission 
C) radioactive,alpha 
D) radioactive,neutron 
E) stable 
A) radioactive,beta 
B) radioactive,fission 
C) radioactive,alpha 
D) radioactive,neutron 
E) stable

Question 13

Bombardment of   As by a deuteron,   H,forms a proton and an isotope which has a mass number of ________ and an atomic number of ________.

Accepted Answer

A) 75,32 
B) 75,33 
C) 73,32 
D) 76,33 
E) 74,34 
A) 75,32 
B) 75,33 
C) 73,32 
D) 76,33 
E) 74,34

Question 14

The most highly charged particle is:

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) positron 
E) neutron 
A) alpha 
B) beta 
C) gamma 
D) positron 
E) neutron

Question 15

If 1.0 gram of an isotope has a half-life of 15 hours,the half-life of a 0.50 gram sample of the same isotope is ________.

Accepted Answer

A) 60 hours 
B) 30 hours 
C) 7.5 hours 
D) 15 hours 
E) 3.75 hours 
A) 60 hours 
B) 30 hours 
C) 7.5 hours 
D) 15 hours 
E) 3.75 hours

Question 16

Choose the INCORRECT statement.

Accepted Answer

A) Cancer cannot be caused by ionizing radiation. 
B) Cancer can be treated with gamma rays. 
C) Radiation works against cancer because cancer cells are more easily damaged than normal cells. 
D) Protons,X-rays,and neutrons can also be used against cancer cells. 
E) Ionizing radiation tends to kill all cells. 
A) Cancer cannot be caused by ionizing radiation. 
B) Cancer can be treated with gamma rays. 
C) Radiation works against cancer because cancer cells are more easily damaged than normal cells. 
D) Protons,X-rays,and neutrons can also be used against cancer cells. 
E) Ionizing radiation tends to kill all cells.

Question 17

If we start with 1.000 g of cobalt-60,0.675 g will remain after 3.00 y.This means that the half-life Of cobalt-60 Is ________ y.

Accepted Answer

A) 3.08 
B) 4.44 
C) 2.03 
D) 5.29 
E) 7.65 
A) 3.08 
B) 4.44 
C) 2.03 
D) 5.29 
E) 7.65

Question 18

210Pb → 4He + ________.

Accepted Answer

A) (214Pb) 
B) (206Hg) 
C) (214Hg) 
D) (206Pb) 
E) (206Br) 
A) (214Pb) 
B) (206Hg) 
C) (214Hg) 
D) (206Pb) 
E) (206Br)

Question 19

Which of the following would have the greatest penetrating power through matter?

Accepted Answer

A) gamma rays 
B) alpha particles 
C) protons 
D) beta particles 
E) positron particles 
A) gamma rays 
B) alpha particles 
C) protons 
D) beta particles 
E) positron particles

Question 20

Choose the correct statement.

Accepted Answer

A) Instability leading to decay by alpha particle emission is found mostly in nuclides of very large mass number. 
B) Decay by beta emission is confined to nuclides of very low mass number. 
C) Ejection of an electron by a nuclide results in a nuclide of next lower mass number. 
D) All radiations emitted by radioactive nuclides consist of charged,high energy particles. 
E) Many alpha and beta emissions are followed by gamma emissions. 
A) Instability leading to decay by alpha particle emission is found mostly in nuclides of very large mass number. 
B) Decay by beta emission is confined to nuclides of very low mass number. 
C) Ejection of an electron by a nuclide results in a nuclide of next lower mass number. 
D) All radiations emitted by radioactive nuclides consist of charged,high energy particles. 
E) Many alpha and beta emissions are followed by gamma emissions.

Exam 25: Nuclear Chemistry

The nuclear binding energy for cobalt-59 is the energy released when:

Choose the INCORRECT statement.

There are three radioactive series: the thorium series,which begins with 232Th,the actinium series which starts with 235U and the uranium series which starts with what isotope?

Which nuclide below is most likely to decay by electron capture?

The most massive particle is:

________ + Β → 37Cl.

Radioactive nuclides that lie above the band of stability become more stable by positron emission.

Alpha particle bombardment of 27Al followed by neutron emission produces ________.

Complete the following fusion reaction: H + H

Radioactive decay is:

Identify a reaction that follows a different decay process than the rest.

Choose the correct word to describe the nuclear stability of the following isotope.If it is radioactive,choose the most likely mode of decay. 238U

Bombardment of As by a deuteron, H,forms a proton and an isotope which has a mass number of ________ and an atomic number of ________.

The most highly charged particle is:

If 1.0 gram of an isotope has a half-life of 15 hours,the half-life of a 0.50 gram sample of the same isotope is ________.

Choose the INCORRECT statement.

If we start with 1.000 g of cobalt-60,0.675 g will remain after 3.00 y.This means that the half-life Of cobalt-60 Is ________ y.

210Pb → 4He + ________.

Which of the following would have the greatest penetrating power through matter?

Choose the correct statement.

Matter: Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

There are three radioactive series: the thorium series,which begins with ²³²Th,the actinium series which starts with ²³⁵U and the uranium series which starts with what isotope?

________ + Β → ³⁷Cl.

Alpha particle bombardment of ²⁷Al followed by neutron emission produces ________.

Choose the correct word to describe the nuclear stability of the following isotope.If it is radioactive,choose the most likely mode of decay. ²³⁸U

Bombardment of As by a deuteron, H,forms a proton and an isotope which has a mass number of and an atomic number of .

210_Pb → ⁴He + ________.