Content Benchmark P.12.A.4
Students know atoms bond with one another by transferring or sharing electrons E/S
Sample Test Questions
1st Item Specification: Recognize that bonding electrons are outer electrons
Depth of Knowledge Level 1
1.
Analyze the model of an atom below.
I
II
Proton
Neutron
Electron
III
IV
Which of the above numbers indicates the orbit of the electrons that could bond with electrons of
other atoms to make molecules?
A. I
B. II
C. III
D. IV
2.
Which of the following is true about the electrons of atoms that bond to form molecules?
A. They are the strongest electrons in the atom.
B. They are the largest electrons in the atom.
C. They occupy the outermost orbit of the atom.
D. They are the electrons closest to the nucleus.
Depth of Knowledge Level 2
3.
Lithium releases an electron to fluorine to form the compound lithium fluoride. Analyze the model
of this ionic bonding shown in the diagram below.
III
II
Proton
Neutron
I
Electron
Lithium
Fluorine
Which of the above electron transfers correctly models the bonding arrangement between lithium
and fluorine to form lithium fluoride?
A. I only
B. II only
C. III only
D. I and II
4.
Atoms bond with each other by transferring or sharing electrons.
Proton
I
Electron
II
III
IV
Identify the model above that shows the correct bonding arrangement of electrons between two
hydrogen atoms to make H2.
A. Model I
B. Model II
C. Model III
D. Model IV
2nd Item Specification: Explain the difference between ionic and covalent bonding.
Depth of Knowledge Level 1
5.
Observe the picture of sodium releasing an electron to chlorine to form sodium chloride.
Sodium (Na)
Chlorine (Cl)
(From http://www.visionlearning.com/library/module_viewer.php?mid=55)
Which type of bond is formed by sodium and chlorine to form sodium chloride?
A. Ionic bond.
B. Covalent bond.
C. Nuclear bond.
D. Atomic bond.
6.
Which type of electron bond is formed when atoms share electrons?
A. Ionic bond.
B. Transfer bond.
C. Covalent bond.
D. Sharing bond.
Depth of Knowledge Level 2
7.
Which of the following statements is true about ionic and covalent bonding?
A. Ionic bonds are formed between nonmetals and covalent bonds are formed between metals.
B. Ionic and covalent bonds can be formed between metals and between nonmetals.
C. Ionic bonds form between metals and nonmetals, and covalent bonds form between
nonmetals.
D. Ionic bonds and covalent bonds always contain at least one metal and one nonmetal.
8.
Observe the diagrams below showing ionic and covalent bonding.
Model I
Model II
Which of the following is true about the models above?
A. Model I shows ionic bonding because the valence electrons are shared.
B. Model II shows covalent bonding because the valence electrons are transferred.
C. Model I shows covalent bonding because the valence electrons are transferred.
D. Model II shows ionic bonding because one electron is transferred to another atom.
3rd Item Specification: Predict bond type based on relative positions on the periodic table (e.g.,
alkali metal and halogen, and typical organic compounds).
Depth of Knowledge Level 1
9.
Analyze the period table below and answer the question.
(From http://www.elementsdatabase.com/)
Which of the following is an example of alkali metals forming ionic bonds with nonmetals?
A. Potassium (K) can form ionic bonds with chlorine (Cl).
B. Potassium (K) can form ionic bonds with Sodium (Na).
C. Oxygen (O) can form ionic bonds with carbon (C).
D. Sodium (Na) can form an ionic bond with Helium (He).
10. Analyze the period table below and answer the question.
(From http://www.elementsdatabase.com/)
Metals often form ionic bonds with nonmetals. Nonmetals often form covalent bonds with each
other. Identify the true statement below.
A. Sodium (Na) can form a covalent bond with Fluorine (F).
B. Magnesium (Mg) can form an ionic bond with chlorine (Cl).
C. Lithium (Li) can form an ionic bond with Sodium (Na).
D. Potassium (K) can form a covalent bond with Calcium (Ca)
11. Organic compounds are molecular compounds that always contain carbon (C), usually hydrogen
(H), and often nitrogen (N), sulfur (S) and phosphorus (P). Identify the organic compound below.
A. Ammonia (NH3)
B. Phosphate (PO4)
C. Methane (CH4).
D. Sulfur dioxide (SO2).
Depth of Knowledge Level 2
12. Analyze the period table below and answer the question.
(From http://www.elementsdatabase.com/)
Identify the true statement below.
A. Transition metals usually form bonds with the Noble gases.
B. Alkaline Earth metals can form bonds with each other.
C. Nonmetals cannot form bonds with each other.
D. Alkali metals can form bonds with the halogens.
13. Analyze the period table below and answer the question.
(From http://www.elementsdatabase.com/)
Covalent bonds are formed when atoms share pairs of valence electrons. Ionic bonds are formed
when oppositely charged ions attract. Ions are charged atoms or molecules. Analyze the following
table showing covalent and ionic bonds.
Covalent Bonds
Ionic bonds
I C and O to form CO Na+ and Cl- to form NaCl
II N and O to form NO2 Li+ and l- to form LiF
The elements potassium (K) and Fluorine (F) can bond with each other, and the elements oxygen
(O) and Sulfur (S) can bond with each other. Which of the following statements is true about
these bonds?
A. K and F will form ionic bonds and O and S will form covalent bonds.
B. K and F will form covalent bonds and O and S will form ionic bonds.
C. K and F will form ionic or covalent bonds depending on if they are ions.
D. K and F and O and S cannot form bonds with each other.
14. Analyze the period table below and answer the question.
(From http://www.elementsdatabase.com/)
A sodium ion (Na+) can form an ionic bond with a chlorine ion (Cl-). A carbon (C)
atom can form a covalent bond with and oxygen (O) atom. Identify the true statement below.
A. Carbon (C) and Oxygen (O) can ionize and form an ionic bond.
B. Oxygen (O) and chlorine (Cl) can ionize and form an ionic bond.
C. Lithium (Li) and Chlorine (Cl) can form a covalent bond.
D. Lithium (Li) and Chlorine (Cl) can ionize and form an ionic bond.
Content Benchmark P.12.A.4
Students know atoms bond with one another by transferring or sharing electrons E/S
Answers to Sample Test Questions
1. A, DOK Level 1
2. C, DOK Level 1
3. B, DOK Level 2
4. B, DOK Level 2
5. A, DOK Level 1
6. C, DOK Level 1
7. C, DOK Level 2
8. D, DOK Level 1
9. A, DOK Level 1
10. B, DOK Level 1
11. C, DOK Level 1
12. D, DOK Level 2
13. A, DOK Level 2
14. D, DOK Level 2