Question 1

Alpha decay produces a new nucleus whose than those respectively of the original nucleus.

Accepted Answer

A)  atomic number is 2 more and mass number is 4 more 
B)  atomic number is 2 less and mass number is 4 less 
C)  atomic number is 2 more and mass number is 2 less 
D)  atomic number is 2 less and mass number is 2 less 
E)  atomic number is 1 less and mass number is 2 less 
A)  atomic number is 2 more and mass number is 4 more 
B)  atomic number is 2 less and mass number is 4 less 
C)  atomic number is 2 more and mass number is 2 less 
D)  atomic number is 2 less and mass number is 2 less 
E)  atomic number is 1 less and mass number is 2 less

Question 2

The carbon- 14 dating method can be used to determine the age of a

Accepted Answer

A)  papyrus scroll. 
B)  clay pot. 
C)  flint arrowhead. 
D)  stone axe head. 
E)  rock. 
A)  papyrus scroll. 
B)  clay pot. 
C)  flint arrowhead. 
D)  stone axe head. 
E)  rock.

Question 3

Gamma radiation only changes the atomic number but not the mass number of a nucleus.

Accepted Answer

A) True 
 B)False

Question 4

Which one of the following processes results in an increase in the atomic number?

Accepted Answer

A)  positron emission 
B)  gamma emission 
C)  alpha emission 
D)  corrosion 
E)  beta emission 
A)  positron emission 
B)  gamma emission 
C)  alpha emission 
D)  corrosion 
E)  beta emission

Question 5

Nuclei above the belt of stability can lower their neutron- to- proton ratio by _

Accepted Answer

A)  gamma emission. 
B)  positron emission. 
C)  beta emission. 
D)  electron capture. 
E)  Any of the above processes will lower the neutron- to- proton ratio. 
A)  gamma emission. 
B)  positron emission. 
C)  beta emission. 
D)  electron capture. 
E)  Any of the above processes will lower the neutron- to- proton ratio.

Question 6

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

Accepted Answer

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

Question 7

In the nuclear transmutation represented by  ?, what is the emitted particle?

Accepted Answer

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

Question 8

When living tissue is irradiated most of the energy is absorbed by .

Accepted Answer

The answer of When living tissue is irradiated most of...

Question 9

In the nuclear transmutation, , what is the bombarding particle?

Accepted Answer

A)  a phosphorus nucleus 
B)  a gamma photon 
C)  an alpha particle 
D)  a beta particle 
E)  a proton 
A)  a phosphorus nucleus 
B)  a gamma photon 
C)  an alpha particle 
D)  a beta particle 
E)  a proton

Question 10

What was the purpose of the Manhattan project?

Accepted Answer

to build a

Question 11

Which of these nuclides is most likely to be radioactive?

Accepted Answer

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

Question 12

The half- life of cobalt- 60 is 5.2 yr. How many milligrams of a 2.000- mg sample remains after 6.55 years?

Accepted Answer

A)  1.588 
B)  1.163 
C)  0.837 
D)  3.23 × 10- 15 
E)  4.779 
A)  1.588 
B)  1.163 
C)  0.837 
D)  3.23 × 10- 15 
E)  4.779

Question 13

When an isotope undergoes electron capture, what happens to the captured electron?

Accepted Answer

It combines with a p

Question 14

The curie is a measure of the

Accepted Answer

A)  number of alpha particles emitted by exactly one gram of a radioactive substance. 
B)  total energy absorbed by an object exposed to a radioactive source. 
C)  lethal threshold for radiation exposure. 
D)  number of disintegrations per second of a radioactive substance. 
E)  None of the above is correct. 
A)  number of alpha particles emitted by exactly one gram of a radioactive substance. 
B)  total energy absorbed by an object exposed to a radioactive source. 
C)  lethal threshold for radiation exposure. 
D)  number of disintegrations per second of a radioactive substance. 
E)  None of the above is correct.

Question 15

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 16

In the nuclear transmutation represented by  ?, what is the bombarding particle?

Accepted Answer

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

Question 17

Carbon- 11, fluorine- 18, oxygen- 15 and nitrogen- 13 are all used in the clinical diagnostic technique known as _ .

Accepted Answer

positron e

Question 18

What happens to the mass number and the atomic number of an element when it undergoes beta decay?

Accepted Answer

A)  Neither the mass number nor the atomic number change. 
B)  The mass number decreases by 4 and the atomic number decreases by 2. 
C)  The mass number increases by 2 and the atomic number increases by 1. 
D)  The mass number does not change and the atomic number increases by 1. 
E)  The mass number does not change and the atomic number decreases by 2. 
A)  Neither the mass number nor the atomic number change. 
B)  The mass number decreases by 4 and the atomic number decreases by 2. 
C)  The mass number increases by 2 and the atomic number increases by 1. 
D)  The mass number does not change and the atomic number increases by 1. 
E)  The mass number does not change and the atomic number decreases by 2.

Question 19

The mass of a proton is 1.673 × 10- 24 g. The mass of a neutron is 1.675 × 10- 24 g. The mass of the nucleus of an 56Fe atom is 9.289 × 10- 23 g. What is the nuclear binding energy (in J) for 56Fe?
(c = 3.00 × 108 m/s)

Accepted Answer

A)  8.36 × 10- 9 
B)  7.72 × 10- 8 
C)  7.72 × 10- 11 
D)  2.57 × 10- 16 
E)  6.07 × 106 
A)  8.36 × 10- 9 
B)  7.72 × 10- 8 
C)  7.72 × 10- 11 
D)  2.57 × 10- 16 
E)  6.07 × 106

Question 20

Control rods in a nuclear reactor are composed of boron and .

Accepted Answer

The answer of Control rods in a nuclear reactor are...

Exam 21: Nuclear Chemistry

Alpha decay produces a new nucleus whose than those respectively of the original nucleus.

The carbon- 14 dating method can be used to determine the age of a

Gamma radiation only changes the atomic number but not the mass number of a nucleus.

Which one of the following processes results in an increase in the atomic number?

Nuclei above the belt of stability can lower their neutron- to- proton ratio by _

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

In the nuclear transmutation represented by ?, what is the emitted particle?

When living tissue is irradiated most of the energy is absorbed by .

In the nuclear transmutation,, what is the bombarding particle?

What was the purpose of the Manhattan project?

Which of these nuclides is most likely to be radioactive?

The half- life of cobalt- 60 is 5.2 yr. How many milligrams of a 2.000- mg sample remains after 6.55 years?

When an isotope undergoes electron capture, what happens to the captured electron?

The curie is a measure of the

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

In the nuclear transmutation represented by ?, what is the bombarding particle?

Carbon- 11, fluorine- 18, oxygen- 15 and nitrogen- 13 are all used in the clinical diagnostic technique known as _ .

What happens to the mass number and the atomic number of an element when it undergoes beta decay?

The mass of a proton is 1.673 × 10- 24 g. The mass of a neutron is 1.675 × 10- 24 g. The mass of the nucleus of an 56Fe atom is 9.289 × 10- 23 g. What is the nuclear binding energy (in J) for 56Fe? (c = 3.00 × 108 m/s)

Control rods in a nuclear reactor are composed of boron and .

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

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The mass of a proton is 1.673 × 10^-²⁴g. The mass of a neutron is 1.675 × 10^-²⁴g. The mass of the nucleus of an ⁵⁶Fe atom is 9.289 × 10^-²³g. What is the nuclear binding energy (in J) for ⁵⁶Fe? (c = 3.00 × 10⁸m/s)