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Ionic & Covalent Compounds, Names, Formulas

Total questions: 60

Worksheet time: 3600secs

Name
Class
Date
1.

Why do all bonds form?

a)

so the number of protons equals the number of electrons

b)

so an atom can become unstable

c)

to fill the outermost energy level

2.

Match the following descriptions with the location of valence electrons in an atom.

a)

in the innermost energy level of an atom

1.

Core electrons are found

b)

in the middle energy levels of an atom

2.

Electrons in filled inner shells are found

c)

in the outermost energy levels of an atom

3.

Valence electrons are found

3.

An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?

a)

Gain 5

b)

Lose 3

c)

Nothing

4.

Magnesium fluoride

a)

MgF2

b)

Mg2F

c)

MgF

d)

Mg2F4

5.

How many Aluminum atoms are in Al2O3?

a)

3

b)

5

c)

2

d)

1

6.

When naming ionic compounds, the metal is always named first and the nonmetal is always named second.

a)

True

b)

False

7.

Mg3N2

a)

Magnesium nitride

b)

Magnesium (II) nitride

c)

Trimagnesium dinitrogen

8.

How do covalent bonds form?

a)

By donating and receiving valence electrons between atoms.

b)

Scientists still aren't sure.

c)

Opposite slight charges attract each atom in the compound.

d)

Sharing valence electrons between atoms

9.

What two types of atoms make a covalent bond?

a)

2 Nonmetals

b)

1 Metal and 1 Nonmetal

c)

2 Metals

d)

2 Noble Gases

10.

Covalent compounds can have

a)

Single Bonds

b)

Double Bonds

c)

Triple Bonds

d)

Quadruple Bonds

11.

When an atom loses an electron, it becomes a

a)

positive ion

b)

negative ion

c)

neutral ion

d)

neutral atom

12.

What is the proper name for CH4?

a)

Monocarbon hydride

b)

Carbon tetrahydride

c)

Monocarbon tetrahydride

13.

The proper name for S2O2 is (a)   .

Choose from the below words
Sulfur oxide
Sulfur dioxide
Sulfur (II) oxide
Disulfur dioxide
14.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
15.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
16.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
17.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
18.
A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?
a)
1
1
b)
3
c)
4
d)
6
19.
Ionic or covalent?
Na  F
a)
Ionic
b)
Covalent
20.
Which of the following is an example of a COVALENT COMPOUND?
a)
H2S
b)
KI
c)
CaCl2
d)
MgO
21.

Match the following molecular formulas with the total number of atoms in each molecule.

a)

6

1.

H2

b)

12

2.

O3

c)

18

3.

NH3

d)

24

4.

C6H12O6

22.

Potassium will form a (a)   bond with Sulfur.

Choose from the below words
ionic
covalent
metallic
no bond
23.

What kind of bond will form between Hydrogen and Oxygen?

a)

ionic

b)

covalent

c)

metallic

d)

no bond

24.
What is the charge on a chloride ion?
a)
-1
b)
1
c)
+2
d)
+1
25.
What is the charge on a Hydrogen ion?
a)
+1
b)
1
c)
2
26.

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

a)

K and Cl

b)

Li and I

c)

Br and Cl

d)

Ba and I

27.

What type of bonds are formed when calcium atoms react with oxygen atoms?

a)

Covalent

b)

Ionic

28.

Which type of bond is formed in Calcium Carbide (CaC2)

a)

Covalent

b)

Ionic

29.

A charged particle is called an __________

a)

Ion

b)

Ionic Bond

c)

Ione

d)

Nothing, they don't exist

30.
What's my name? MgS
a)
magnesium monosulfide
b)
magnesium sulfide
c)
magnesium sulfate
d)
monomagnesium monosulfide
31.
What is the correct formula for Sodium Oxide?
a)
NaO
b)
NaO2
c)
Na2O
d)
Na2O2
32.

What's my name? BeCl2

a)

monoberyllium dichloride

b)

beryllium(II) chloride

c)

beryllium chloride

d)

beryllium dichloride

33.

Match the following chemical compounds with their formulas.

a)

PCl3

1.

phosphorous trichloride

b)

P3Cl

2.

Triphosphorus monochloride

c)

P3Cl3

3.

Triphosphorus trichloride

d)

PCL

4.

Phosphorus chloride

34.

The name of this compound N2O5 is...

a)
nitrogen oxide.
b)
dinitrogen oxide.
c)
nitrogen pentoxide.
d)
dinitrogen pentoxide.
35.

What is the correct formula of Nitrogen Trichloride?

a)

N2Cl4

b)

N3Cl3

c)

NCl3

d)

NCl5

36.
Name the compound Na2O
a)
Sodium Oxide
b)
Sodium Dioxide
c)
Sodium Oxygen
d)
Natride Oxide
37.

Covalent: What is the chemical formula for Fluorine trisulfide ?

a)

S3F

b)

FS3

c)

FS

d)

none of the above

38.

Match the following chemical compounds with their formulas.

a)

SF

1.

Sulfur monofluoride

b)

S2F10

2.

Disulfur decafluoride

c)

S10F2

3.

Decasulfur difluoride

d)

None of these

4.

Unknown compound

39.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

40.

When naming a compound, what must the last part be?

a)

the element with "ide" at the end

b)

the element with the ending "ite"

c)

the name of the element

d)

the element with "ide" at the end, unless its a polyatomic ion

41.

Which compound naming uses prefixes?

a)

Ionic

b)

Covalent

c)

Ionic and covalent both do

d)

Neither Ionic or covalent do

42.

Cs2O

a)

Dicaesium oxide

b)

Caesium oxide

c)

Caesium dioxide

d)

Dicaesium monoxide

43.

Na2S

a)

Disodium sulfide

b)

Sodium sulfide

c)

Sodium monosulfide

d)

Disodium monosulfide

44.

How do the following two elements bond together?

Cr3+ O2- (Hint: How many do I need of each to get a charge of zero?)

a)

CrO

b)

Cr3O2

c)

Cr2O3

d)

CrO3

45.

How do the following two elements bond together?

Al3+ O2-

a)

AlO

b)

Al2O3

c)

Al3O6

d)

Al3O2

46.

FeCl3

a)

Iron trichloride

b)

Iron (II) chloride

c)

Iron (III) chloride

d)

Iron (I) chloride

47.

Magnesium Iodide

a)

MgI3

b)

Mg2I2

c)

MgI2

d)

MgI

48.

When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by ________.

a)

prefix

b)

Roman numeral following the name

c)

suffix

d)

superscript after the name

49.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
50.

Which of the following compounds contains the (Pb)

lead (III) ion? (Sulfide is S2-)

a)

Pb2S

b)

Pb2S3

c)

Pb3S2

d)

PbS

51.

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

a)

2

b)

4

c)

6

d)

8

e)

10

52.

Is the following compound ionic or covalent?

A material that has a low boiling point

a)

Ionic

b)

Covalent

53.

Is the following compound ionic or covalent?

Exists as a solid, liquid or gas

a)

Ionic

b)

Covalent

54.

The following compound is (a)   : A material with a high melting point.

Choose from the below words
Ionic
Covalent
55.

Is the following compound ionic or covalent?

A material that has a low boiling point

a)

Ionic

b)

Covalent

56.

Is the following compound ionic or covalent?

A material that is hard and brittle

a)

Ionic

b)

Covalent

57.
Molten compound conducts electricity.
a)
ionic compound
b)
covalent compound
58.
When dissolved in water, the solution is a good conductor of electricity.
a)
ionic compounds
b)
covalent compounds
59.
forms ions in solution
a)
ionic compounds
b)
covalent compounds
60.

What is the chemical formula for Diphosphorus pentoxide?

a)

P2O5

b)

P5O2

c)

P2O3

d)

P5O5

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