Question 1

Which pair correctly matches an element to its atomic number?

Accepted Answer

A)  9.012 - Be 
B)  12.01 - C 
C)  39.94 - Ar 
D)  9 - F 
E)  133 - Cs 
A)  9.012 - Be 
B)  12.01 - C 
C)  39.94 - Ar 
D)  9 - F 
E)  133 - Cs D

Question 2

In which of the following nuclear reactions is only gamma radiation released?

Accepted Answer

A)    
B)    
C)    
D)    
E)  All of these reactions probably release gamma radiation. 
A)    
B)    
C)    
D)    
E)  All of these reactions probably release gamma radiation. A

Question 3

Which statement BEST describes why alpha particles are not frequently used in medical applications?

Accepted Answer

A)  Their half-lives are too long. 
B)  They can do too much damage at close range. 
C)  They are difficult to transport. 
D)  They require too much shielding. 
E)  Their penetrating power is too great. 
A)  Their half-lives are too long. 
B)  They can do too much damage at close range. 
C)  They are difficult to transport. 
D)  They require too much shielding. 
E)  Their penetrating power is too great. B

Question 4

Which of the method(s)of imaging listed below uses x-rays? I.x-ray
II)computed tomography

Accepted Answer

A)  I only 
B)  II only 
C)  I and II 
D)  neither I nor II 
A)  I only 
B)  II only 
C)  I and II 
D)  neither I nor II

Question 5

Carbon-11 has a half-life of 20 minutes.Which of the following equations is used to calculate the amount of carbon-11 remaining after 1 hour if the starting material is a 100-mg sample?

Accepted Answer

A)  100 mg × ½ 
B)  100 mg/3 
C)  100 mg/20 
D)  100 mg/20/20/20 
E)  100 mg × ½ × ½ × ½ 
A)  100 mg × ½ 
B)  100 mg/3 
C)  100 mg/20 
D)  100 mg/20/20/20 
E)  100 mg × ½ × ½ × ½

Question 6

How is ionizing radiation damaging to the body?

Accepted Answer

A)  It can cause DNA damage. 
B)  It can cause gene mutations. 
C)  It can cause cell death. 
D)  It can cause radiation sickness. 
E)  All of the above are correct about ionizing radiation damage to the body. 
A)  It can cause DNA damage. 
B)  It can cause gene mutations. 
C)  It can cause cell death. 
D)  It can cause radiation sickness. 
E)  All of the above are correct about ionizing radiation damage to the body.

Question 7

Micro- and macronutrients are

Accepted Answer

A)  equally distributed throughout the body. 
B)  all metals and metalloids. 
C)  obtained through the diet. 
D)  only found in the first three periods of the periodic table. 
E)  all required in quantities of more than 100 mg per day. 
A)  equally distributed throughout the body. 
B)  all metals and metalloids. 
C)  obtained through the diet. 
D)  only found in the first three periods of the periodic table. 
E)  all required in quantities of more than 100 mg per day.

Question 8

Which of the following indicates that an alpha particle has been released during radioactive decay of an atom?

Accepted Answer

A)  The identity of the atom does not change. 
B)  The mass number of the atom decreases by 4. 
C)  The atomic number of the atom increases by 1 
D)  The atomic number of the atom decreases by 1. 
E)  The atomic number of the atom decreases by 4. 
A)  The identity of the atom does not change. 
B)  The mass number of the atom decreases by 4. 
C)  The atomic number of the atom increases by 1 
D)  The atomic number of the atom decreases by 1. 
E)  The atomic number of the atom decreases by 4.

Question 9

How many electrons are in the valence energy level?

Accepted Answer

A)  12 
B)  10 
C)  8 
D)  4 
E)  2 
A)  12 
B)  10 
C)  8 
D)  4 
E)  2

Question 10

_____ determine the physical and chemical characteristics of an atom.

Accepted Answer

A)  Protons 
B)  Neutrons 
C)  Electrons 
D)  Protons and neutrons 
E)  Protons, neutrons, and electrons 
A)  Protons 
B)  Neutrons 
C)  Electrons 
D)  Protons and neutrons 
E)  Protons, neutrons, and electrons

Question 11

Which atom has the largest diameter? ​

Accepted Answer

A)  H 
B)  He 
C)  H and He 
D)  Li 
E)  All of the above have the same diameter. 
A)  H 
B)  He 
C)  H and He 
D)  Li 
E)  All of the above have the same diameter.

Question 12

Radioactive decay is the process by which

Accepted Answer

A)  radioisotopes become more stable. 
B)  radioisotopes emit radiation. 
C)  radioisotopes emit high-energy particles and/or electromagnetic radiation. 
D)  an element of one type can change to an element of another type. 
E)  All of the above are correct about radioactive decay. 
A)  radioisotopes become more stable. 
B)  radioisotopes emit radiation. 
C)  radioisotopes emit high-energy particles and/or electromagnetic radiation. 
D)  an element of one type can change to an element of another type. 
E)  All of the above are correct about radioactive decay.

Question 13

The radioisotope undergoing decay is often called the

Accepted Answer

A)  reactant. 
B)  product. 
C)  parent nuclide. 
D)  decayer. 
E)  daughter nuclide. 
A)  reactant. 
B)  product. 
C)  parent nuclide. 
D)  decayer. 
E)  daughter nuclide.

Question 14

Which pair does NOT correctly match an element symbol to its full name?

Accepted Answer

A)  C - carbon 
B)  O - oxygen 
C)  H - helium 
D)  N - nitrogen 
E)  Cl - chlorine 
A)  C - carbon 
B)  O - oxygen 
C)  H - helium 
D)  N - nitrogen 
E)  Cl - chlorine

Question 15

According to the current model of the atom, the part of the diagram labeled A is made up of

Accepted Answer

A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  protons and neutrons. 
E)  protons, neutrons, and electrons. 
A)  protons. 
B)  neutrons. 
C)  electrons. 
D)  protons and neutrons. 
E)  protons, neutrons, and electrons.

Question 16

Which of the following elements exists as an isotope with a mass number of 35 and an atomic number of 17?

Accepted Answer

A)  chlorine 
B)  bromine 
C)  argon 
D)  tellurium 
E)  sulfur-35 
A)  chlorine 
B)  bromine 
C)  argon 
D)  tellurium 
E)  sulfur-35

Question 17

Adding _____ to drinking water is a common practice in many cities, meant to strengthen tooth enamel and decrease dental cavities.

Accepted Answer

A)  iodine 
B)  fluorine 
C)  zinc 
D)  iron 
E)  oxygen 
A)  iodine 
B)  fluorine 
C)  zinc 
D)  iron 
E)  oxygen

Question 18

The number of protons is equal to the _____ in a neutral atom.

Accepted Answer

A)  number of neutrons 
B)  number of electrons 
C)  mass number 
D)  average atomic mass 
E)  group number 
A)  number of neutrons 
B)  number of electrons 
C)  mass number 
D)  average atomic mass 
E)  group number

Question 19

Which of the following terms is NOT a characteristic of a metal?

Accepted Answer

A)  malleable 
B)  a good conductor of heat 
C)  a good conductor of electricity 
D)  shiny 
E)  a gas at room temperature 
A)  malleable 
B)  a good conductor of heat 
C)  a good conductor of electricity 
D)  shiny 
E)  a gas at room temperature

Question 20

According to the periodic table, the atomic mass of potassium (K)is ______.

Accepted Answer

A)  4 
B)  19 
C)  39.10 
D)  K 
E)  2 
A)  4 
B)  19 
C)  39.10 
D)  K 
E)  2

Which pair correctly matches an element to its atomic number?

In which of the following nuclear reactions is only gamma radiation released?

Which statement BEST describes why alpha particles are not frequently used in medical applications?

Which of the method(s)of imaging listed below uses x-rays? I.x-ray II)computed tomography

Carbon-11 has a half-life of 20 minutes.Which of the following equations is used to calculate the amount of carbon-11 remaining after 1 hour if the starting material is a 100-mg sample?

How is ionizing radiation damaging to the body?

Micro- and macronutrients are

Which of the following indicates that an alpha particle has been released during radioactive decay of an atom?

How many electrons are in the valence energy level?

_____ determine the physical and chemical characteristics of an atom.

Which atom has the largest diameter?

Radioactive decay is the process by which

The radioisotope undergoing decay is often called the

Which pair does NOT correctly match an element symbol to its full name?

According to the current model of the atom, the part of the diagram labeled A is made up of

Which of the following elements exists as an isotope with a mass number of 35 and an atomic number of 17?

Adding _____ to drinking water is a common practice in many cities, meant to strengthen tooth enamel and decrease dental cavities.

The number of protons is equal to the _____ in a neutral atom.

Which of the following terms is NOT a characteristic of a metal?

According to the periodic table, the atomic mass of potassium (K)is ______.

Matter, Energy, and Measurement

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 2: Atomic Structure and Radioisotopes

Which pair correctly matches an element to its atomic number?

In which of the following nuclear reactions is only gamma radiation released?

Which statement BEST describes why alpha particles are not frequently used in medical applications?

Which of the method(s)of imaging listed below uses x-rays? I.x-ray II)computed tomography

Carbon-11 has a half-life of 20 minutes.Which of the following equations is used to calculate the amount of carbon-11 remaining after 1 hour if the starting material is a 100-mg sample?

How is ionizing radiation damaging to the body?

Micro- and macronutrients are

Which of the following indicates that an alpha particle has been released during radioactive decay of an atom?

How many electrons are in the valence energy level?

_____ determine the physical and chemical characteristics of an atom.

Which atom has the largest diameter? ​

Radioactive decay is the process by which

The radioisotope undergoing decay is often called the

Which pair does NOT correctly match an element symbol to its full name?

According to the current model of the atom, the part of the diagram labeled A is made up of

Which of the following elements exists as an isotope with a mass number of 35 and an atomic number of 17?

Adding _____ to drinking water is a common practice in many cities, meant to strengthen tooth enamel and decrease dental cavities.

The number of protons is equal to the _____ in a neutral atom.

Which of the following terms is NOT a characteristic of a metal?

According to the periodic table, the atomic mass of potassium (K)is ______.

Matter, Energy, and Measurement

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Which atom has the largest diameter?