Question 1

In the following reaction, identify X. ${ }_{92}^{238} \mathrm{U}(15 \mathrm{n}, \mathrm{X}){ }_{99}^{253} \mathrm{Es}$

Accepted Answer

A)  7b 
B)  3a 
C)  4n 
D)  $7_{+1}^{~~~0} \mathrm{e}$ 
E)  15p 
A)  7b 
B)  3a 
C)  4n 
D)  $7_{+1}^{~~~0} \mathrm{e}$ 
E)  15p

Question 2

Consider the following decay series:   What type of nuclear process occurs at the transformation labeled II

Accepted Answer

A)  aemission 
B)  bemission 
C)  positron emission 
D)  electron capture 
E)  gamma radiation 
A)  aemission 
B)  bemission 
C)  positron emission 
D)  electron capture 
E)  gamma radiation

Question 3

Protactinium-234 has a half-life of 1 minute. How much of a 400. g sample protactinium would remain after 4 minutes

Accepted Answer

A)  23 g 
B)  25 g 
C)  27 g 
D)  29g 
E)  None of the above 
A)  23 g 
B)  25 g 
C)  27 g 
D)  29g 
E)  None of the above

Question 4

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 5

Consider the following decay series: ${ }_{84}^{218} \mathrm{Po} \xrightarrow{\mathrm{a}}{ }_{82}^{214} \mathrm{~Pb} \xrightarrow{\mathrm{~b}}{ }_{83}^{214} \mathrm{Bi} \xrightarrow{\mathrm{c}}{ }_{84}^{214} \mathrm{Po} \xrightarrow{\mathrm{~d}}{ }_{82}^{210} \mathrm{~Pb}$ Which type of nuclear process occurs in steps a and b, respectively

Accepted Answer

A)  aemission, a emission 
B)  aemission, b emission 
C)  bemission, positron emission 
D)  bemission, a emission 
E)  positron emission, b emission 
A)  aemission, a emission 
B)  aemission, b emission 
C)  bemission, positron emission 
D)  bemission, a emission 
E)  positron emission, b emission

Question 6

Complete and balance the nuclear equation ${ }_{87}^{223} \mathrm{Fr} \rightarrow{ }_{-1}^{0} \beta+$ ________

Accepted Answer

A)  ${ }_{86}^{223} R n$ 
B)  ${ }_{86}^{222} R n$ 
C)  ${ }_{88}^{223} R a$ 
D)  ${ }_{88}^{222} \mathrm{Ra}$ 
E)  None of the above 
A)  ${ }_{86}^{223} R n$ 
B)  ${ }_{86}^{222} R n$ 
C)  ${ }_{88}^{223} R a$ 
D)  ${ }_{88}^{222} \mathrm{Ra}$ 
E)  None of the above

Question 7

List the different types of nuclear radiation (alpha, beta, gamma) in order of increasing penetrating power.

Accepted Answer

A)  alpha < beta < gamma 
B)  beta < alpha < gamma 
C)  gamma < alpha < beta 
D)  gamma < beta < alpha 
E)  alpha < gamma < beta 
A)  alpha < beta < gamma 
B)  beta < alpha < gamma 
C)  gamma < alpha < beta 
D)  gamma < beta < alpha 
E)  alpha < gamma < beta

Question 8

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years. If you initially had 1.0 * 10-7 mole of tritium, how many moles of tritium would be left after 78 years

Accepted Answer

A)  8.0 * 10-10 mol 
B)  1.0 * 10-9 mol 
C)  1.2 * 10-9 mol 
D)  1.4 * 10-9 mol 
E)  None of the above 
A)  8.0 * 10-10 mol 
B)  1.0 * 10-9 mol 
C)  1.2 * 10-9 mol 
D)  1.4 * 10-9 mol 
E)  None of the above

In the following reaction, identify X. ${ }_{92}^{238} \mathrm{U}(15 \mathrm{n}, \mathrm{X}){ }_{99}^{253} \mathrm{Es}$

Consider the following decay series: What type of nuclear process occurs at the transformation labeled II

Protactinium-234 has a half-life of 1 minute. How much of a 400. g sample protactinium would remain after 4 minutes

Beta particles are identical to

Complete and balance the nuclear equation ${ }_{87}^{223} \mathrm{Fr} \rightarrow{ }_{-1}^{0} \beta+$ ________

List the different types of nuclear radiation (alpha, beta, gamma) in order of increasing penetrating power.

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years. If you initially had 1.0 * 10^-7 mole of tritium, how many moles of tritium would be left after 78 years

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

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 Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Exam 19: Nuclear Chemistry

In the following reaction, identify X. 92238U(15n,X)99253Es{ }_{92}^{238} \mathrm{U}(15 \mathrm{n}, \mathrm{X}){ }_{99}^{253} \mathrm{Es}92238​U(15n,X)99253​Es

Consider the following decay series: What type of nuclear process occurs at the transformation labeled II

Protactinium-234 has a half-life of 1 minute. How much of a 400. g sample protactinium would remain after 4 minutes

Beta particles are identical to

Complete and balance the nuclear equation 87223Fr→−10β+{ }_{87}^{223} \mathrm{Fr} \rightarrow{ }_{-1}^{0} \beta+87223​Fr→−10​β+ ________

List the different types of nuclear radiation (alpha, beta, gamma) in order of increasing penetrating power.

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years. If you initially had 1.0 * 10-7 mole of tritium, how many moles of tritium would be left after 78 years

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

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 Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

In the following reaction, identify X. ${ }_{92}^{238} \mathrm{U}(15 \mathrm{n}, \mathrm{X}){ }_{99}^{253} \mathrm{Es}$

Complete and balance the nuclear equation ${ }_{87}^{223} \mathrm{Fr} \rightarrow{ }_{-1}^{0} \beta+$ ________

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years. If you initially had 1.0 * 10^-7 mole of tritium, how many moles of tritium would be left after 78 years