Question 1

Atoms of which of the following elements are smallest?

Accepted Answer

A)  Cl 
B)  P 
C)  S 
D)  None, they are all the same size. 
A)  Cl 
B)  P 
C)  S 
D)  None, they are all the same size. A

Question 2

How many electrons can be accommodated in the fourth shell of an atom?

Accepted Answer

A)  2 
B)  8 
C)  18 
D)  32 
A)  2 
B)  8 
C)  18 
D)  32 D

Question 3

Which element has the following ground state electron configuration?

Accepted Answer

A)  Al 
B)  Na 
C)  B 
D)  Ga 
E)  none of these 
A)  Al 
B)  Na 
C)  B 
D)  Ga 
E)  none of these A

Question 4

Which of the following products are formed when sodium reacts with water?

Accepted Answer

A)  NaH + O2 
B)  NaO + H2 
C)  Na2O + H2 
D)  NaOH + H2 
A)  NaH + O2 
B)  NaO + H2 
C)  Na2O + H2 
D)  NaOH + H2

Question 5

The mass of a proton is approximately which of the following?

Accepted Answer

A)  12 g 
B)  1 g 
C)  12 amu 
D)  1 amu 
A)  12 g 
B)  1 g 
C)  12 amu 
D)  1 amu

Question 6

Which subatomic particle(s) are found in the nucleus?

Accepted Answer

A)  electrons 
B)  neutrons 
C)  protons 
D)  protons and neutrons 
A)  electrons 
B)  neutrons 
C)  protons 
D)  protons and neutrons

Question 7

When a strong magnet is brought near a sample that contains both iron and sulfur the iron and the sulfur are not separated from one another. What type of material is this sample?

Accepted Answer

A)  a compound 
B)  a homogeneous mixture 
C)  a heterogeneous mixture 
D)  There is insufficient information to answer. 
A)  a compound 
B)  a homogeneous mixture 
C)  a heterogeneous mixture 
D)  There is insufficient information to answer.

Question 8

Atoms of which of the following elements are smallest?

Accepted Answer

A)  Ca 
B)  K 
C)  Mg 
D)  Na 
A)  Ca 
B)  K 
C)  Mg 
D)  Na

Question 9

Which of the following statements describe a compound?

Accepted Answer

A)  A compound is a pure substance. 
B)  A compound obeys the law of constant composition. 
C)  both a and b 
D)  neither a nor b 
A)  A compound is a pure substance. 
B)  A compound obeys the law of constant composition. 
C)  both a and b 
D)  neither a nor b

Question 10

How many elements are there in period 4?

Accepted Answer

A)  2 
B)  6 
C)  8 
D)  18 
A)  2 
B)  6 
C)  8 
D)  18

Question 11

Which of the following is true of a 1 gram sample of iron?

Accepted Answer

A)  It contains a very, very small number of atoms, since each individual atom has a large mass. 
B)  It contains a very huge number of atoms, each of which is fairly massive. 
C)  It contains a very, very huge number of atoms, each of which has an extremely tiny mass. 
D)  none of the above 
A)  It contains a very, very small number of atoms, since each individual atom has a large mass. 
B)  It contains a very huge number of atoms, each of which is fairly massive. 
C)  It contains a very, very huge number of atoms, each of which has an extremely tiny mass. 
D)  none of the above

Question 12

Which column of the periodic table is commonly called the alkali metals?

Accepted Answer

A)  1A 
B)  2A 
C)  7A 
D)  8A 
A)  1A 
B)  2A 
C)  7A 
D)  8A

Question 13

What is the name of the lowest possible energy state for an electron?

Accepted Answer

A)  Bohr state 
B)  bottom state 
C)  ground state 
D)  none of the above 
A)  Bohr state 
B)  bottom state 
C)  ground state 
D)  none of the above

Question 14

Which of the following is true of the ionization energy of the elements?

Accepted Answer

A)  Ionization energy generally decreases as we move left to right and decreases as we move top to bottom in the periodic table. 
B)  Ionization energy generally decreases as we move left to right and increases as we move top to bottom in the periodic table. 
C)  Ionization energy generally increases as we move left to right and decreases as we move top to bottom in the periodic table. 
D)  Ionization energy generally increases as we move left to right and increases as we move top to bottom in the periodic table. 
A)  Ionization energy generally decreases as we move left to right and decreases as we move top to bottom in the periodic table. 
B)  Ionization energy generally decreases as we move left to right and increases as we move top to bottom in the periodic table. 
C)  Ionization energy generally increases as we move left to right and decreases as we move top to bottom in the periodic table. 
D)  Ionization energy generally increases as we move left to right and increases as we move top to bottom in the periodic table.

Question 15

Which element is present in the largest amount (by number of atoms) in the human body?

Accepted Answer

A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen 
A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen

Question 16

How many elements occur naturally as diatomic molecules?

Accepted Answer

A)  0 
B)  5 
C)  6 
D)  7 
A)  0 
B)  5 
C)  6 
D)  7

Question 17

When a particular solid sample is examined under a microscope it is observed that there are regions which are black and regions which are yellow. What type of material is this sample?

Accepted Answer

A)  a compound 
B)  an element 
C)  a homogeneous mixture 
D)  a heterogeneous mixture 
A)  a compound 
B)  an element 
C)  a homogeneous mixture 
D)  a heterogeneous mixture

Question 18

When comparing the boiling points of the halogens with those of the noble gases which of the following is true?

Accepted Answer

A)  The boiling points decrease as the elements get heavier, and the boiling point of the halogen is higher than that of the noble gas adjacent to it. 
B)  The boiling points decrease as the elements get heavier, and the boiling point of the halogen is lower than that of the noble gas adjacent to it. 
C)  The boiling points increase as the elements get heavier, and the boiling point of the halogen is higher than that of the noble gas adjacent to it. 
D)  The boiling points increase as the elements get heavier, and the boiling point of the halogen is lower than that of the noble gas adjacent to it. 
A)  The boiling points decrease as the elements get heavier, and the boiling point of the halogen is higher than that of the noble gas adjacent to it. 
B)  The boiling points decrease as the elements get heavier, and the boiling point of the halogen is lower than that of the noble gas adjacent to it. 
C)  The boiling points increase as the elements get heavier, and the boiling point of the halogen is higher than that of the noble gas adjacent to it. 
D)  The boiling points increase as the elements get heavier, and the boiling point of the halogen is lower than that of the noble gas adjacent to it.

Question 19

What is the maximum number of unpaired electrons in a Lewis dot structure?

Accepted Answer

A)  1 
B)  3 
C)  4 
D)  8 
A)  1 
B)  3 
C)  4 
D)  8

Question 20

What is the mass number of an atom which is made up of 27 protons, 33 neutrons and 27 electrons?

Accepted Answer

A)  87 
B)  60 
C)  33 
D)  27 
A)  87 
B)  60 
C)  33 
D)  27

Exam 2: Atoms

Atoms of which of the following elements are smallest?

How many electrons can be accommodated in the fourth shell of an atom?

Which element has the following ground state electron configuration?

Which of the following products are formed when sodium reacts with water?

The mass of a proton is approximately which of the following?

Which subatomic particle(s) are found in the nucleus?

When a strong magnet is brought near a sample that contains both iron and sulfur the iron and the sulfur are not separated from one another. What type of material is this sample?

Atoms of which of the following elements are smallest?

Which of the following statements describe a compound?

How many elements are there in period 4?

Which of the following is true of a 1 gram sample of iron?

Which column of the periodic table is commonly called the alkali metals?

What is the name of the lowest possible energy state for an electron?

Which of the following is true of the ionization energy of the elements?

Which element is present in the largest amount (by number of atoms) in the human body?

How many elements occur naturally as diatomic molecules?

When a particular solid sample is examined under a microscope it is observed that there are regions which are black and regions which are yellow. What type of material is this sample?

When comparing the boiling points of the halogens with those of the noble gases which of the following is true?

What is the maximum number of unpaired electrons in a Lewis dot structure?

What is the mass number of an atom which is made up of 27 protons, 33 neutrons and 27 electrons?

Matter, Energy, and Measurement

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

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Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

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