Question 1

Due to the nature of the positron, ________ is actually detected in positron emission tomography.

Accepted Answer

A) alpha radiation 
B) beta radiation 
C) gamma radiation 
D) x-ray emission 
E) neutron emission 
A) alpha radiation 
B) beta radiation 
C) gamma radiation 
D) x-ray emission 
E) neutron emission

Question 2

Potassium-40 decays to argon-40 with a half-life of 1.27 × 109 yr. The age of a mineral sample that has a mass ratio of 40Ar to 40K of 0.330 is ________ yr.

Accepted Answer

A) 3.85 × 109 
B) 1.77 × 109 
C) 2.55 × 109 
D) 3.62 × 108 
E) 5.23 × 108 
A) 3.85 × 109 
B) 1.77 × 109 
C) 2.55 × 109 
D) 3.62 × 108 
E) 5.23 × 108

Question 3

If we start with 1.000 g of strontium-90, 0.805 g will remain after 9.00 yr. This means that the half-life of strontium-90 is ________ yr.

Accepted Answer

A) 7.74 
B) 11.2 
C) 28.8 
D) 7.25 
E) 41.6 
A) 7.74 
B) 11.2 
C) 28.8 
D) 7.25 
E) 41.6

Question 4

What drives the turbine in a nuclear power plant?

Accepted Answer

A) the moderator 
B) steam 
C) the control rods 
D) the primary coolant 
E) UF6 gas 
A) the moderator 
B) steam 
C) the control rods 
D) the primary coolant 
E) UF6 gas

Question 5

What is the atomic number of a neutron?

Accepted Answer

A) 3 
B) 1 
C) 2 
D) 0 
E) 4 
A) 3 
B) 1 
C) 2 
D) 0 
E) 4

Question 6

Radioactive seeds that are implanted into a tumor are coated with ________ to stop alpha and beta ray penetration.

Accepted Answer

The answer of Radioactive seeds that are implanted into a...

Question 7

What is the missing product from this reaction?   Ca →   Sc + ____

Accepted Answer

A)    e 
B)    γ 
C)    e 
D)    He 
E)    Ca 
A)    e 
B)    γ 
C)    e 
D)    He 
E)    Ca

Question 8

What is the missing product from this reaction?   Na → _____ +   e

Accepted Answer

A)    Ne 
B)    Mg 
C)    Na 
D)    Na 
E)    Na 
A)    Ne 
B)    Mg 
C)    Na 
D)    Na 
E)    Na

Question 9

The energy produced by the sun is the result of nuclear fusion.

Accepted Answer

A) True 
 B)False

Question 10

What is the mass number of a neutron?

Accepted Answer

A) 2 
B) 1 
C) 3 
D) 4 
E) 0 
A) 2 
B) 1 
C) 3 
D) 4 
E) 0

Question 11

What is the missing product from this reaction?   Tl → _____ +   e

Accepted Answer

A)    Pb 
B)    Hg 
C)    Tl 
D)    Tl 
E)    Tl 
A)    Pb 
B)    Hg 
C)    Tl 
D)    Tl 
E)    Tl

Question 12

What happens to the mass number and the atomic number of an element when it emits gamma radiation?

Accepted Answer

A) The mass number remains unchanged while the atomic number decreases by one. 
B) The mass number decreases by four and the atomic number decreases by two. 
C) The mass number increases by four and the atomic number increases by two. 
D) The mass number remains unchanged while the atomic number increases by one. 
E) The mass number and atomic numbers remain unchanged. 
A) The mass number remains unchanged while the atomic number decreases by one. 
B) The mass number decreases by four and the atomic number decreases by two. 
C) The mass number increases by four and the atomic number increases by two. 
D) The mass number remains unchanged while the atomic number increases by one. 
E) The mass number and atomic numbers remain unchanged.

Question 13

________ discovered radioactivity.

Accepted Answer

The answer of ________ discovered radioactivity....

Question 14

The amount of fissionable material necessary to maintain a chain reactions is called the ________.

Accepted Answer

The answer of The amount of fissionable material necessary to...

Question 15

Who is credited with first achieving fission of uranium-235?

Accepted Answer

A) Fermi 
B) Rutherford 
C) Curie 
D) Dalton 
E) Faraday 
A) Fermi 
B) Rutherford 
C) Curie 
D) Dalton 
E) Faraday

Question 16

When an atom of an element undergoes beta decay, its proton count will change by ________ and its neutron count will change by ________.

Accepted Answer

A) +1, -1 
B) 0, 0 
C) -1, +1 
D) -2, -2 
E) -1, -1 
A) +1, -1 
B) 0, 0 
C) -1, +1 
D) -2, -2 
E) -1, -1

Question 17

How many radioactive decay series exist in nature?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 10 
A) 0 
B) 1 
C) 2 
D) 3 
E) 10

Question 18

In the nuclear transmutation represented by   N(   n,   p)?, what is the emitted particle?

Accepted Answer

A) neutron 
B) proton 
C) positron 
D) alpha particle 
E) electron 
A) neutron 
B) proton 
C) positron 
D) alpha particle 
E) electron

Question 19

How much energy (in J)is produced when 0.067 g of matter is converted to energy?

Accepted Answer

A) 6.0 × 1018 
B) 6.0 × 1012 
C) 2.0 × 104 
D) 6.0 × 1015 
E) 2.0 × 107 
A) 6.0 × 1018 
B) 6.0 × 1012 
C) 2.0 × 104 
D) 6.0 × 1015 
E) 2.0 × 107

Question 20

What is required for a nuclear transmutation to occur?

Accepted Answer

A) very high temperature 
B) a corrosive environment 
C) a particle to collide with a nucleus or neutron 
D) spontaneous nuclear decay 
E) gamma emission 
A) very high temperature 
B) a corrosive environment 
C) a particle to collide with a nucleus or neutron 
D) spontaneous nuclear decay 
E) gamma emission

Exam 21: Nuclear Chemistry

Due to the nature of the positron, ________ is actually detected in positron emission tomography.

Potassium-40 decays to argon-40 with a half-life of 1.27 × 109 yr. The age of a mineral sample that has a mass ratio of 40Ar to 40K of 0.330 is ________ yr.

If we start with 1.000 g of strontium-90, 0.805 g will remain after 9.00 yr. This means that the half-life of strontium-90 is ________ yr.

What drives the turbine in a nuclear power plant?

What is the atomic number of a neutron?

Radioactive seeds that are implanted into a tumor are coated with ________ to stop alpha and beta ray penetration.

What is the missing product from this reaction? Ca → Sc + ____

What is the missing product from this reaction? Na → _____ + e

The energy produced by the sun is the result of nuclear fusion.

What is the mass number of a neutron?

What is the missing product from this reaction? Tl → _____ + e

What happens to the mass number and the atomic number of an element when it emits gamma radiation?

________ discovered radioactivity.

The amount of fissionable material necessary to maintain a chain reactions is called the ________.

Who is credited with first achieving fission of uranium-235?

When an atom of an element undergoes beta decay, its proton count will change by ________ and its neutron count will change by ________.

How many radioactive decay series exist in nature?

In the nuclear transmutation represented by N( n, p)?, what is the emitted particle?

How much energy (in J)is produced when 0.067 g of matter is converted to energy?

What is required for a nuclear transmutation to occur?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

Potassium-40 decays to argon-40 with a half-life of 1.27 × 10⁹ yr. The age of a mineral sample that has a mass ratio of ⁴⁰Ar to ⁴⁰K of 0.330 is ________ yr.

When an atom of an element undergoes beta decay, its proton count will change by and its neutron count will change by .