Question 1

Complete the following equation of transmutation.   Al +   He ?   P + ______

Accepted Answer

A)    e 
B)    $\gamma$ 
C)    e 
D)    H 
E)    n 
A)    e 
B)    $\gamma$ 
C)    e 
D)    H 
E)    n E

Question 2

Identify the instrument used to detect radiation.

Accepted Answer

A) cathode ray tube 
B) Geiger counter 
C) oscillation counter 
D) X-ray tube 
E) nuclear magnetic resonance instruments 
A) cathode ray tube 
B) Geiger counter 
C) oscillation counter 
D) X-ray tube 
E) nuclear magnetic resonance instruments B

Question 3

Identify the nuclide that has the shortest half-life.

Accepted Answer

A)    U 
B)    C 
C)    Rn 
D)    Th 
E)    Th 
A)    U 
B)    C 
C)    Rn 
D)    Th 
E)    Th C

Question 4

Determine the binding energy of a F-19 nucleus. The F-19 nucleus has a mass of 18.99840325 amu. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu, and 1 amu is equivalent to 931 MeV of energy.

Accepted Answer

A) 142 MeV 
B) 796 MeV 
C) 1080 MeV 
D) 143 MeV 
E) 145 MeV 
A) 142 MeV 
B) 796 MeV 
C) 1080 MeV 
D) 143 MeV 
E) 145 MeV

Question 5

alpha particle
Match the following.

Accepted Answer

A)    e 
B)    He 
C)    e 
D)    $\gamma$ 
E)    p
F)   n 
A)    e 
B)    He 
C)    e 
D)    $\gamma$ 
E)    p
F)   n

Question 6

What is the mass defect?

Accepted Answer

The mass of a nucleus is less than the s

Question 7

electron
 Match the following.

Accepted Answer

A)    e 
B)    He 
C)    e 
D)    $\gamma$ 
E)    p
F)   n 
A)    e 
B)    He 
C)    e 
D)    $\gamma$ 
E)    p
F)   n

Question 8

Calculate the mass defect in Mo-96 if the mass of a Mo-96 nucleus is 95.962 amu. The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu.

Accepted Answer

A) 0.197 amu 
B) 0.795 amu 
C) 0.212 amu 
D) 0.812 amu 
E) 0.188 amu 
A) 0.197 amu 
B) 0.795 amu 
C) 0.212 amu 
D) 0.812 amu 
E) 0.188 amu

Question 9

Determine the identity of the daughter nuclide from the electron capture by   Be.

Accepted Answer

A)    C 
B)    He 
C)    B 
D)    Li 
E)    B 
A)    C 
B)    He 
C)    B 
D)    Li 
E)    B

Question 10

Complete the following equation of nuclear fusion.   H +   H ?   He + ______

Accepted Answer

A)    e 
B)    $\gamma$ 
C)    e 
D)    H 
E)    n 
A)    e 
B)    $\gamma$ 
C)    e 
D)    H 
E)    n

Question 11

Determine the identity of the daughter nuclide from the beta decay of   P.

Accepted Answer

A)    P 
B)    S 
C)    S 
D)    Si 
E)    Al 
A)    P 
B)    S 
C)    S 
D)    Si 
E)    Al

Question 12

Why is an alpha emitter much more harmful if it is ingested than when applied to the skin?

Accepted Answer

Alpha emitters have the highest ionizing

Question 13

The half-life of cobalt-60 is 5.20 y. How many milligrams of a 2.000-mg sample remain after 6.55 years?

Accepted Answer

A) 0.835 
B) 3.23 × 10-15 
C) 4.779 
D) 1.588 
E) 1.163 
A) 0.835 
B) 3.23 × 10-15 
C) 4.779 
D) 1.588 
E) 1.163

Question 14

A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00. Assuming there was no Pb-206 present when the sample was formed, how old is it? The half-life of U-238 is 4.5 × 109 years.

Accepted Answer

A) 7.3 × 1011 years 
B) 1.4 × 1010 years 
C) 2.4 × 1010 years 
D) 2.1 × 109 years 
E) 7.1 × 109 years 
A) 7.3 × 1011 years 
B) 1.4 × 1010 years 
C) 2.4 × 1010 years 
D) 2.1 × 109 years 
E) 7.1 × 109 years

Question 15

proton
Match the following.

Accepted Answer

A)    e 
B)    He 
C)    e 
D)    $\gamma$ 
E)    p
F)   n 
A)    e 
B)    He 
C)    e 
D)    $\gamma$ 
E)    p
F)   n

Question 16

Which particle has the lowest penetrating power?

Accepted Answer

A) alpha particle 
B) beta particle 
C) gamma rays 
D) positron emission 
E) electron capture 
A) alpha particle 
B) beta particle 
C) gamma rays 
D) positron emission 
E) electron capture

Question 17

The following reaction represents what nuclear process?   U +   n →   Ba +   Kr + 3   n

Accepted Answer

A) nuclear fission 
B) nuclear fusion 
C) electron capture 
D) alpha decay 
E) beta emission 
A) nuclear fission 
B) nuclear fusion 
C) electron capture 
D) alpha decay 
E) beta emission

Question 18

Determine the identity of the daughter nuclide from the beta decay of   Sr.

Accepted Answer

A)    Sr 
B)    Y 
C)    Y 
D)    Kr 
E)    Se 
A)    Sr 
B)    Y 
C)    Y 
D)    Kr 
E)    Se

Question 19

Determine the identity of the daughter nuclide from the alpha decay of   Po.

Accepted Answer

A)    Po 
B)    Hg 
C)    At 
D)    Pb 
E)    Rn 
A)    Po 
B)    Hg 
C)    At 
D)    Pb 
E)    Rn

Question 20

The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of As-76 remains after 538 minutes?

Accepted Answer

A) 67.8 g 
B) 271 g 
C) 144 g 
D) 437 g 
E) 251 g 
A) 67.8 g 
B) 271 g 
C) 144 g 
D) 437 g 
E) 251 g

Exam 19: Radioactivity and Nuclear Chemistry

Complete the following equation of transmutation. Al + He ? P + ______

Identify the instrument used to detect radiation.

Identify the nuclide that has the shortest half-life.

Determine the binding energy of a F-19 nucleus. The F-19 nucleus has a mass of 18.99840325 amu. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu, and 1 amu is equivalent to 931 MeV of energy.

alpha particle Match the following.

What is the mass defect?

electron Match the following.

Calculate the mass defect in Mo-96 if the mass of a Mo-96 nucleus is 95.962 amu. The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu.

Determine the identity of the daughter nuclide from the electron capture by Be.

Complete the following equation of nuclear fusion. H + H ? He + ______

Determine the identity of the daughter nuclide from the beta decay of P.

Why is an alpha emitter much more harmful if it is ingested than when applied to the skin?

The half-life of cobalt-60 is 5.20 y. How many milligrams of a 2.000-mg sample remain after 6.55 years?

A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00. Assuming there was no Pb-206 present when the sample was formed, how old is it? The half-life of U-238 is 4.5 × 109 years.

proton Match the following.

Which particle has the lowest penetrating power?

The following reaction represents what nuclear process? U + n → Ba + Kr + 3 n

Determine the identity of the daughter nuclide from the beta decay of Sr.

Determine the identity of the daughter nuclide from the alpha decay of Po.

The nuclide As-76 has a half-life of 26.0 hours. If a sample of As-76 weighs 344 g, what mass of As-76 remains after 538 minutes?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00. Assuming there was no Pb-206 present when the sample was formed, how old is it? The half-life of U-238 is 4.5 × 10⁹ years.