MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Use your periodic table to answer this question.

How many valence electrons does Si have?

a. one

b. two

c. three

d. four

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

How many electrons are in the outermost principal energy level of an atom of carbon in the ground state?

a. 6

b. 2

c. 3

d. 4

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Using a periodic table, answer the following questions:

1. Which series of elements have the same number of valence electrons?

a. Mg, Co, Bi, Rn

b. S n, P b, F, I

c. Ca, Sr, Cu, Ag

d. Na, Mg, Si, P

e. N, P, S b, Bi

2. Which series of elements have electrons in the same number o

a. Mg, Co, Bi, Rn

b. S n, P b, F, I

c. Ca, Sr, Cu, Ag

d. Na, Mg, Si, P

e. N, P, S b, Bi

Correct Answers:

1. e

2. d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which electron-dot symbol correctly represents an atom of its given element?

a. b.

c. d.

Correct Answer: c

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

What is the total number of electrons in the valence shell of an atom of aluminum in the ground state?

a. 8

b. 2

c. 3

d. 10

Correct Answer: c

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

The atoms of the elements in Group 2 have the same

a. mass number

b. atomic number

c. number of protons

d. number of valence electrons

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

As the atoms of the elements in Group 1 of the Periodic Table are considered from top to bottom, the number of valence electrons in the atoms of each successive element

a. decreases

b. increases

c. remains the same

Correct Answer: c

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which atom in the ground state has five valence electrons?

a. C

b. Cl

c. Si

d. P

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

When an atom loses an electron, the atom becomes an ion that is

a. positively charged and gains a small amount of mass

b. positively charged and loses a small amount of mass

c. negatively charged and gains a small amount of mass

d. negatively charged and loses a small amount of mass

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Atoms of metals tend to

a. lose electrons and form negative ions

b. lose electrons and form positive ions

c. gain electrons and form negative ions

d. gain electrons and form positive ions

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

If M represents a group 1 metal, what is the formula for the compound formed by M and oxygen?

a. MO₂

b. M₂O

c. M₂O₃

d. M₃O₂

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

When a potassium atom reacts with bromine, the potassium atom will

a. lose only 1 electron

b. lose 2 electrons

c. gain only 1 electron

d. gain 2 electrons

Correct Answer: a

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

A Mg atom differs from a Mg²⁺ ion in that the Mg atom has

a. 2 less electrons

b. 2 more electrons

c. 2 more protons

d. 2 less protons

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which pair of atoms is held together by a covalent bond?

a. HCl

b. LiCl

c. NaCl

d. KCl

Correct Answer: a

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which substance contains a bond with the greatest ionic character?

a. KCl

b. HCl

c. Cl₂

d. F₂

Correct Answer: a

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which of the following atoms has the greatest tendency to attract electrons?

a. barium

b. beryllium

c. boron

d. bromine

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which pair of atoms will share electrons when a bond is formed between them?

a. Ba and I

b. Br and Cl

c. K and Cl

d. Li and I

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

When a chemical reaction takes place with an atom, in occurs in:

a. the nucleus of an atom

b. only in the protons in the nucleus

c. acquires or loses protons

d. the electrons in the outer shells

e. in the nucleus, by neutrons that have no electrical charge

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which atom will form an ionic bond with a Br atom?

a. N

b. Li

c. O

d. C

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which elements combine by forming an ionic bond?

a. sodium and potassium

b. sodium and oxygen

c. carbon and oxygen

d. carbon and sulfur

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which type of bond is formed when an atom of potassium transfers an electron to a bromine atom?

a. metallic

b. ionic

c. nonpolar covalent

d. polar covalent

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which particles may be gained, lost, or shared by an atom when it forms a chemical bond?

a. protons

b. electrons

c. neutrons

d. nucleons

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Element X is n Group 2 and element Y is in Group 17. What happens when a compound is formed between these two atoms?

a. X loses electrons to Y to form an ionic bond.

b. X loses electrons to Y to form a covalent.

c. X gains electrons from Y to form an ionic bond.

d. X gains electrons from Y to form a covalent bond.

Correct Answer: a

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Given the electron dot diagram:

The electrons in the bond between hydrogen and fluorine are more strongly attracted to the atom of

a. hydrogen, which has the higher electronegativity

b. fluorine, which has the higher electronegativity

c. hydrogen, which has the lower electronegativity

d. fluorine, which has the lower electronegativity

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

In which compound do atoms form bonds by sharing electrons?

a. H₂O
b. Na₂O

c. CaO

d. MgO

Correct Answer: a

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

What is the maximum number of covalent bonds that can be formed by one carbon atom?

a. 1

b. 2

c. 3

d. 4

Correct Answer: d

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which statement best describes the substance that results when electrons are transferred from a metal to a nonmetal?

a. It contains ionic bonds and has a low melting point.

b. It contains ionic bonds and has a high melting point.

c. It contains covalent bonds and has a low melting point.

d. It contains covalent bonds and has a high melting point.

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Metallic bonding occurs between atoms of:

a. sulfur

b. copper

c. fluorine

d. carbon

Correct Answer: b

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

Which formula represents an ionic compound?

a. NaCl

b. N₂O

c. HCl

d. H₂O

Correct Answer: a

MC	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO:

The high electrical conductivity of metals is primarily due to:

a. high ionization energy

b. filled energy levels

c. mobile electrons

d. high electronegativities

Correct Answer: c

I	Chemistry	Standard: 03
Objective: 01. Analyze the relationship of valence electrons and the bond between atoms.
ILO: