wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Ch 6 Chemical Bonds

Total questions: 42

Worksheet time: 22mins

Name
Class
Date
1.

Typically, atoms gain or lose electrons to achieve ___________.

a)

an exchange of energy

b)

ionization

c)

a stable electron configuration

d)

vaporization

2.

Which of the following groups contain three elements with stable electron configurations?

a)

argon, neon, barium

b)

helium, xenon, argon

c)

lithium, krypton, argon

d)

xenon, neon, boron

3.

In an electron dot diagram, the symbol for an element is used to represent __________.

a)

the nucleus

b)

the nucleus and all electrons

c)

the nucleus and valence electrons

d)

the nucleus and all nonvalence electrons

4.

Ionization energies tend to ______________.

a)

decrease from left to right across a period

b)

increase from left to right across a period

c)

increase from the top of a group to the bottom

d)

decrease from the bottom of a group to the top

5.

Study the electron dot diagrams for lighium, carbon, fluorine, and neon. Choose the statement that correclty identifies the most stable of the elements.

a)

Lithium is the most stable element because it has to lose only one electron to achieve a stable configuration.

b)

Carbon is the most stable element because it can form four bonds.

c)

Fluorine is the most stable element because it has to gain only one electron to achieve a stable configuration.

d)

Neon is the most stable element because its highest occupied energy level is filled.

6.

The formation of an ionic bond involves the ____________.

a)

transfer of electrons

b)

transfer of neutrons

c)

transfer of protons

d)

sharing of electrons

7.

In the compound MgCl2, the subscript 2 indicates that _______.

a)

there are two magnesium ions for each ion of chlorine

b)

the chloride ion is twice the size of the magnesium ion

c)

magnesium and chlorine form a double covalent bond

d)

there are two chloride ions for each magnesium ion

8.

Which of the following statements correctly describes the substance with the formula KI?

a)

Molecules of potassium iodide contain one atom of potassium and one atom of iodine.

b)

There is a one-to-one ratio of potassium ions to iodide ions

c)

Potassium iodide is a molecular compound

d)

Potassium iodide is a polyatomic ion

9.

When two atoms of the same nonmetal react, they often form a/an _______.

a)

ionic bond

b)

diatomic molecule

c)

polyatomic ion

d)

polar molecule

10.

Which of the following is a typical property of an ionic compound?

a)

low melting point

b)

poor conductor of electric current when melted

c)

tendency to shatter when struck

d)

all of the above

11.

Which of the following comppounds does not contain molecules?

a)

H2

b)

CO2

c)

NaCl

d)

H2O

12.

In a polar covalent bond, ______________.

a)

electrons are shared equally between atoms

b)

a cation is bonded to an anion

c)

electrons are transferred between atoms

d)

electrons are not shared equally between atoms

13.

The water molecule H2O is polar because it contains two polar single bonds and _____________.

a)

its molecule has a linear shape

b)

molecules that contain polar bonds are always polar

c)

its molecule has a bent shape

d)

the attractions between water molecules are strong

14.

Because water molecules are polar and carbon dioxide molecules are nonpolar, ________________.

a)

carbon dioxide cannot exist as a solid

b)

water has a higher boiling point than carbon dioxide does

c)

water has a lower boiling point than carbon dioxide does

d)

attractions between water molecules are weaker than attractions between carbon dioxide molecules

15.

Water has a higher boiling point than expected because ______.

a)

there is so much water vapor in the atmosphere

b)

water molecules are not very massive

c)

hydrogen and oxygen form single covalent bonds

d)

of the strong attractions between polar water molecules

16.

In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains ______.

a)

two carbon atoms

b)

two oxygen atoms

c)

a polyatomic ion

d)

an ionic bond

17.

Fluorine, F, forms a binary ionic compound with lithium, Li. What is the name of this compound?

a)

fluorine lithide

b)

lithium fluoride

c)

lithium fluorine

d)

fluorine lithium

18.

Beryllium, Be, and chlorine, Cl, form a binary ionic compound with a one-to-two ratio of beryllium ions to chloride ions. The formula for the compound is ____.

a)

Be2Cl

b)

BeCl2

c)

2BeCl

d)

Be2Cl2

19.

In the binary ionic compound potassium bromide, KBr, the element that forms cations is _____________.

a)

bromine

b)

potassium

20.

KBris the formula for an ionic compound. The fact that neither symbol is followed by a subscript means that there is a/an ______ ratio of ions in the compound

a)

unbalanced

b)

one-to-one

c)

two-to-one

d)

flawed

21.

You are given the melting points of three unknown substances and asked to predict which is an ionic compound. You would select the compound with the _____ melting point.

a)

lowest

b)

highest

c)

most upredictable

22.

In the binary ionic compound lithium iodide, LiI, which element forms anions?

a)

iodine

b)

lithium

23.

The molecules in compound XY are strongly polar, while the molecules in compoun AB are nonpolar. Which substance probably has the higher boiling poing?

a)

AB

b)

XY

24.

In postssium bromide, KBr, which element forms anions?

a)

K

b)

Br

c)

Neither K nor Br

d)

Both K and Br

25.

In an electron dot diagram, each dot represent a/an _____.

a)

molecule

b)

element

c)

proton

d)

valence electron

26.

In an ionic compound, the attractions between cations and ______ hold the compound together.

a)

protons

b)

neutrons

c)

anions

27.

The chemical formula for calcium chloride, CaCl2, shows that the compound contains two __________ ions for every _________ ion.

a)

calcium, chloride

b)

chloride, calcium

28.

The ions in solid sodium chloride are arranged in a structure called a/an _____.

a)

polyatomic ion

b)

crystal lattice

c)

crystal rhombus

d)

polyatomic rhombus

29.

A polar covalent bond forms when ______ are not shared equally between atoms.

a)

electrons

b)

neutrons

c)

protons

30.

A/An _____ ion is a covalently bonded group of atoms that has a positive or negative charge.

a)

alkali

b)

acidic

c)

poly-covalent

d)

polyatomic

31.

In ionic compounds, the sum of the charges of all the cations and anions must be _________.

a)

positive

b)

negative

c)

zero

d)

1+

32.

In a periodic table that included electron dot diagrams, in whichh column would the diagram contain more dots ---- Group 2A (the alkaline metals) or Group 7A (the halogens)

a)

Group 2A (the alkaline metals)

b)

Group 7A (the halogens)

33.

In an lectron dot diagram of rubidium, there is one dot. In an electron dot diagram of silicon, there are dour dots. Which element would you expect to be more reactive?

a)

rubidium

b)

silicon

34.

Potassium, an alkali metal, and bromine, a halogen, are both in Period 4 of the periodic table. Which element has a higher ionization energy?

a)

Potassium

b)

Bromine

35.

A type of bond that hold cations and anions together are ______.

a)

covalent

b)

polyatomic

c)

ionic

d)

crystals

36.

A type of bond in which two atoms share a pair of valence electrons is a ________ bond.

a)

nonexistent

b)

permanent

c)

ionic

d)

covalent

37.

A neutral group of atoms that are joined together by one or more covalent bonds is a _______.

a)

polar bond

b)

molecule

c)

alloy

d)

crystal

38.

An ion with a negative charge is a/an ______.

a)

anion

b)

cation

c)

formula

d)

molecule

39.

An ion with a positive charge is a/an _______.

a)

formula

b)

polar ion

c)

cation

d)

anion

40.

A notation that shows what elements a compound contains and the ratio ofthe atoms or ions of these element in the compound are _____.

a)

a bond

b)

the covalent bond

c)

a formula

d)

an ionic bond

41.

Solids whose particles ae arranged in a lattice structure are called _____.

a)

polyhedrons

b)

a rhombus

c)

a crystal

d)

a six sided platy

42.

Water has a higher boiling point than carbon dioxide because attraction between polar molecules are ______ attractions between nonpolar molecules.

a)

the same as

b)

weaker than

c)

stronger than