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PSci Unit 4: Compounds

Total questions: 125

Worksheet time: 4hrs 10mins

Name
Class
Date
1.
Which type of bond transfers electrons?
a)
ionic
b)
covalent
c)
metallic
2.
If an atom does not have a stable octet, what will it do?
a)
form bonds with other atoms
b)
nothing
c)
fall apart
d)
gain or lose protons
3.
What are electrons in the outermost energy level called?
a)
valence electrons
b)
bonus electrons
c)
protons
d)
orbitals
4.
What is the correct term for "atom with more protons than electrons"?
a)
positive ion (cation)
b)
negative ion (anion)
c)
neutral atom
d)
stable atom
5.
What is the correct term for "atom with more electrons than protons"?
a)
positive ion (cation)
b)
negative ion (anion)
c)
neutral atom
d)
stable atom
6.

Ionic compounds conduct electricity only when molten or in a solution because...

a)

electrons are free to move

b)

water is free to move

c)

molecules are free to move

d)

ions are free to move

7.

Ions are formed when atoms...

a)

lose or gain electrons

b)

lose electrons

c)

gain electrons

d)

gain neutrons

8.

Ions are formed because atoms want to obtain the stable arrangement of a noble gas.

a)

True

b)

False

9.

Ionic bonds are the _____ between positive and negative ions.

a)

covalent bonds

b)

metallic bonds

c)

polar bonds

d)

electrostatic attraction

10.

Ionic compounds always conduct electricity - whether they are in the solid, liquid or gas form.

a)

True

b)

False

11.
CO2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion 
d)
Metallic 
12.
MgCl2
a)
Ionic
b)
Covalent
c)
Polyatomic Ion
d)
Metallic 
13.
Ionic compounds are bonds between
a)
Metals and Metals
b)
Metals and Nonmetals
c)
Nonmetals and Nonmetals
d)
None of the above
14.
Which of these compounds is ionic? 
a)
Carbon dioxide
b)
Dinitrogen Trioxide
c)
Silicon tetrachloride
d)
Lithium bromide
15.

Classify ionic or molecular

CaO

a)

Ionic

b)

Molecular

16.

Classify ionic or molecular

C2H2

a)

Ionic

b)

Molecular

17.
Which of the following is NOT an ionic compound:
a)
CaO
b)
NaOH
c)
BaCl2
d)
CH4
18.

What main characteristic separates molecules from other types of compounds?

a)

molecules are held together by transferring electrons

b)

molecules are held together by sharing electrons

c)

molecules are highly unstable

d)

molecules can't exist as individual units

19.

According to the molecular formula for glucose, C6H12O6, how many hydrogens are present in one molecule of glucose?

a)

3

b)

6

c)

12

d)

none

20.
Compared to ionic compounds, molecular compounds generally have...
a)
good conductivity
b)
greater densities
c)
more chemical bonds
d)
a low boiling point
21.
Compared to ionic compounds, molecular compounds generally have...
a)
stronger chemical bonds
b)
poor conductivity
c)
a high melting point
d)
lower densities
22.

molecular compound

a)

a substance made of 2 or more nonmetal atoms covalently bonded

b)

a substance made of 2 or more metal atoms covalently bonded

c)

a substance made of 2 or more nonmetal atoms ionically bonded

d)

a substance made of 2 or more metal atoms ionically bonded

23.
What is the charge on an Aluminium ion?
a)
3
b)
+3
c)
+2
d)
+1
24.
What is the charge on a chloride ion?
a)
-1
b)
1
c)
+2
d)
+1
25.
A(n) _________ is an ion with a positive (+) charge.
a)
anion
b)
cation
c)
ion
d)
solute
26.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
27.
In the chemical formula for an ionic compound, which item is written first?
a)
positive ion
b)
negative ion
c)
subscript
d)
the female
28.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
29.
What will be the compound name of the following chemical formula?
NaCl
a)
Potassium Chloride
b)
Sodium Chloride
c)
Calcium Chloride
d)
Sodium Chlorine
30.
Which is the correct name for CaBr2?
a)
Calcium Bromine
b)
Bromine Calcium
c)
Calcium Bromide
d)
Carbon and Bromine
31.
What is the formula of calcium oxide?
a)
CaO2
b)
CaO
c)
Ca2O
d)
CO
32.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
33.
Name the following ionic compound: BeCl2
a)
beryllium chlorine
b)
beryllium II chloride
c)
beryllium chloride
d)
beryllium dichloride
34.
name the following ionic compound: NaF
a)
nitrogen fluorine
b)
sodium fluoride
c)
nitrogen fluoride
d)
sodium fluorine
35.
LiBr is called
a)
lithium bromine
b)
lithium (I) bromine
c)
lithium bromide
d)
lithuim (I) bromide
36.
What formula results when Ca+2  and  Br- ions bond?
a)
Ca2Br2
b)
CaBr
c)
Ca(br)2
d)
CaBr2
37.
Name this compound: 
KF
a)
Potassium fluoride
b)
Potassium fluorite
c)
Fluorine potasside 
d)
Potassium fluorate
38.
sodium nitride
a)
NaNO3
b)
NaN
c)
NaN3
d)
Na3N
39.
Metal ions are always
a)
positive
b)
negative
c)
neutral
d)
free
40.
Non-Metal ions are always
a)
positive
b)
negative
c)
neutral
d)
free
41.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
42.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
43.
diphosphorus pentoxide
a)
P2O5
b)
PO5
c)
P5O2
d)
P2O6
44.
SiCl4
a)
silicon tetrachloride
b)
silicon quadchloride
c)
monosilicon tetrachloride
d)
silicon chloride
45.
The chemical formula of sulfur hexabromide is
a)
SBr₆
b)
S₆Br
c)
S(VI)Br
d)
S6Br
46.
The chemical formula of carbon tetrachloride is
a)
CCl
b)
C₄Cl
c)
CCl₄
d)
C(IV)Cl
47.
The chemical formula of dinitrogen textroxide is
a)
Ni₂O₄
b)
NiO
c)
N₂O₄
d)
NiO₂
48.
The name of P₄S₁₀ is
a)
phosphorous sulfide
b)
phosphorus sulfide
c)
tetraphosphorus decasulfide
d)
phosphorus (X) sulfide
49.

The chemical formula of tetraphosphorus heptoxide is

a)
F₄O₁₀
b)
P₄O7
c)
PO
d)
P₁₀O₄
50.
The chemical formula of dinitrogen textroxide is
a)
Ni₂O₄
b)
NiO
c)
N₂O₄
d)
NiO₂
51.
The name of SO₃ compound is
a)
sulfate
b)
sulfur oxide
c)
sulfur trioxide
d)
monosulfur trioxide
52.
What's the formula for chlorine dioxide
a)
ClO2
b)
CLO
c)
ClO3
d)
HClO2
53.
What is the formula for Hexaboron Monosilicide
a)
B6Si
b)
BSi
c)
BSi6
d)
B6Si6
54.
What is the OFFICIAL name for H2O
a)
Hydrogen Oxide
b)
Oxygen Dinitride
c)
Agua
d)
Dihydrogen Monoxide
55.
BrO3
a)
bromine oxide
b)
monobromine trioxide
c)
bromine trioxide
d)
bromine (III) oxide
56.
What is the formula for Tricarbon Octahydride?
a)
Ca3O
b)
C2H8
c)
C3H8
d)
Ca3H8
57.
What is the correct name for NO?
a)
Mononitrogen Monoxide
b)
Nitrogen Monoxide
c)
Mononitrogen Dioxide
d)
Nitrogen Oxide
58.
What is the correct chemical formula for Nitrogen Triiodide?
a)
NI3
b)
N3I3
c)
NOI
d)
NeI3
59.
A binary covalent bond exists between
a)
2 metals
b)
1 metal and 1 nonmetal
c)
2 nonmetals
d)
Any 2 elements
60.
The covalent compound N2O5 would be named
a)
nitrogen oxide.
b)
dinitrogen oxide.
c)
nitrogen pentoxide.
d)
dinitrogen pentoxide.
61.

Is the following compound ionic or covalent?

Exists as a solid, liquid or gas

a)

Ionic

b)

Covalent

62.

Is the following compound ionic or covalent?

A material that has a low boiling point

a)

Ionic

b)

Covalent

63.

Is the following compound ionic or covalent?

A material with a high melting point

a)

Ionic

b)

Covalent

64.

Is the following compound ionic or covalent?

PBr5

a)

Ionic

b)

Covalent

65.

Is the following compound ionic or covalent?

LiBr

a)

Ionic

b)

Covalent

66.

Is the following compound ionic or covalent?

A material that has a low boiling point

a)

Ionic

b)

Covalent

67.

Is the following compound ionic or covalent?

A material that forms a crystal lattice

a)

Ionic

b)

Covalent

68.

Is the following compound ionic or covalent?

A material that is hard and brittle

a)

Ionic

b)

Covalent

69.

Is the following compound ionic or covalent?

A material that SHARES electrons

a)

Ionic

b)

Covalent

70.

Is the following compound ionic or covalent?

A material that LOSES and GAINS electrons

a)

Ionic

b)

Covalent

71.
Molten compound conducts electricity.
a)
ionic compound
b)
covalent compound
72.
Molten compound does NOT conduct electricity.
a)
ionic compound
b)
covalent compound
73.

When dissolved in water, the solution is always a good conductor of electricity.

a)
ionic compounds
b)
covalent compounds
74.
forms ions in solution
a)
ionic compounds
b)
covalent compounds
75.

The following properties are all characteristics of ionic compounds EXCEPT

a)

high melting and boiling points

b)

soft

c)

crystal lattice structure

d)

conduct electricity when dissolved in water

76.

Where is a Valence electron located?

a)

The innermost shell

b)

The nucleus

c)

The outmost shell

77.

A __________ goes up and down on the periodic table.

a)

Group

b)

Period

78.

A _________ goes side to side on the periodic table.

a)

Group

b)

Period

79.

What element is in period 4, group 1?

a)

K - Potassium

b)

V - Vandium

c)

C - Carbon

d)

Ti - Titanium

80.

What two elements are in the same Period?

a)

K - Potassium and Na - Sodium

b)

Li - Lithium and Mg - Magnesium

c)

B - Boron and C - Carbon

d)

Zn - Zinc and N - Nitrogen

81.

Which two elements would have similar properties?

a)

Ar - Argon and Xe - Xenon

b)

Og - Oganesson and Lu - Lutetium

c)

He - Helium and Lu - Lutetium

d)

Ar - Argon and Se - Selenium

82.

What element is in group 2, period 6?

a)

Sr - Strontium

b)

Ba - Barium

c)

S - Sulfur

d)

O - Oxygen

83.

What two elements have the same number of energy shells?

a)

He - Helium and Ne - Neon

b)

Na - Sodium and K - Potassium

c)

Be - Berylium and Mg - Magnesium

d)

Na - Sodium and Mg - Magnesium

84.

How many Valence electrons does Ba-Barium have?

a)

3

b)

2

c)

6

d)

56

85.

The _______ tells us how many energy shells an element has.

a)

group

b)

period

c)

atomic number

d)

element symbol

86.

The _________ tells us how many valence electrons an element has.

a)

Group

b)

Period

c)

Atomic Number

d)

Element

87.

What period does the element I - Iodine belong to?

a)

17

b)

6

c)

3

d)

5

88.

What group does the element Zn - Zinc belong to?

a)

12

b)

10

c)

4

d)

5

89.

There are_______ periods and _________ groups in the periodic table.

a)

8, 7

b)

18, 7

c)

15, 10

d)

7, 18

90.

How many valence electrons does an element want to have?

a)

0

b)

10

c)

2

d)

8

91.

How many valence electrons does this atom have?

a)

4

b)

2

c)

6

92.

How many energy shells does Fe - Iron have?

a)

26

b)

2

c)

4

d)

55

93.

Why do carbon, silicon, and tin all react similarly?

a)

They are located in the same period

b)

They have an even atomic number

c)

They have the same number of energy levels

d)

They are located in the same group

94.

What do Rb, Sn, and Xe have in common?

a)

family

b)

number of energy levels

c)

location of discovery

d)

valence electrons

95.

What is the valence electron count of the alkaline earth metal family?

a)

-2

b)

-1

c)

2

d)

1

96.

The diagram below is the bohr model of an atom. Which best describes this atom?

a)

it has a full outermost shell

b)

it has 6 valence electrons

c)

it has a positive charge

d)

it has 6 electrons

97.

How many valence electrons are in a neutral atom of nitrogen?

a)

5

b)

3

c)

2

d)

15

98.

which two elements have the same number of valence electrons?

a)

C and O

b)

Cl and F

c)

Ga and Ge

d)

Na and Mg

99.

What is the correct lewis dot diagram for Boron?

a)
b)
c)
d)
100.

The alkali metals elements are in the same family in the periodic table because they all have

a)

eight valence electrons

b)

seven valence electrons

c)

two valence electrons

d)

one valence electron

101.

The elements F, Cl, and I are all in the same column on the periodic table. Which is the best explanation for this arrangement.

a)

They have the same number of energy levels

b)

They were all discovered at ancient times

c)

They were all gases at room temperature

d)

they have the same number of valence electrons

102.

Which of the following is a property shared by the elements in the carbon family? (Column IV)

a)

The same electron configuration

b)

The number of valence eletrons

c)

An atomic mass of 12

d)

An atomic number of 6

103.

Elements with the same valence electron configuration can be expected to have similar

a)

chemical reactivity

b)

number of protons

c)

number of electrons

d)

atomic mass

104.

Which element is most similar to potassium (K)

a)

argon

b)

chlorine

c)

phosphorus

d)

sodium

105.

Both calcium and magnesium have the same number of valence electrons. How else can these two elements be the same?

a)

Both elements have the same atomic number

b)

Both elements have the same atomic mass

c)

Both elements are in the same group in the periodic table

d)

Both elements are in the same period on the periodic table

106.

Bob and Tanya study two electron configurations of a neutral atom. What do the two atoms have in common?

a)

Family

b)

Period

c)

Mass number

d)

Atomic number

107.

The diagram represents an element. Which best describes this element?

a)

10 protons and 9 neutrons in the nucleus

b)

9 protons and 9 neutrons in the nucleus

c)

2 electrons in the first energy level; 8 electrons in the second energy level

d)

2 electrons in the first energy level; 7 electrons in the second energy level

108.

How many atoms of hydrogen are in the compound H2OH_2O ?

a)

1

b)

2

c)

3

d)

4

109.

In the compound C6H12O6C_6H_{12}O_6 , how many carbon atoms are present?

a)

6

b)

12

c)

18

d)

24

110.

In the compound K3PO4K_3PO_4 , how many potassium (K) atoms are present?

a)

1

b)

2

c)

3

d)

4

111.

One TNT molecule contains how many atoms?

a)

21

b)

24

c)

16

d)

27

112.

Which of the following is the correct electron dot diagram for hydrogen?

a)
b)
c)
d)
113.

Which of the following is the correct electron dot diagram for potassium?

a)
b)
c)
d)
114.

Which of the following is the correct electron dot diagram for aluminum?

a)
b)
c)
d)
115.

Which of the following is the correct electron dot diagram for argon?

a)
b)
c)
d)
116.

one ammonium bromide molecule has how many atoms?

a)

4

b)

6

c)

7

d)

5

117.

one lead (iv) acetate molecule has how many atoms?

a)

15

b)

4

c)

8

d)

13

118.

one silver nitrate molecule has how many atoms?

a)

10

b)

8

c)

3

d)

5

119.

Which of the following is the correct electron dot diagram for chlorine?

a)
b)
c)
d)
120.

one sodium carbonate molecule has how many atoms?

a)

5

b)

4

c)

8

d)

6

121.

Which of the following is the correct electron dot diagram for carbon?

a)
b)
c)
d)
122.

Which of the following is the correct electron dot diagram for calcium?

a)
b)
c)
d)
123.

one ammonium nitrate molecule has how many atoms?

a)

8

b)

7

c)

6

d)

9

124.

one glucose molecule has how many atoms?

a)

20

b)

24

c)

12

d)

18

125.

How many atoms are in ammonium?

a)

1 nitrogen, 5 hydrogen = 6

b)

1 nitrogen, 4 hydrogen = 5

c)

2 nitrogen, 4 hydrogen = 6

d)

4 nitrogen, 1 hydrogen = 5

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