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Covalent Bonding

Total questions: 58

Worksheet time: 51mins

Name
Class
Date
1.
When two atoms share electrons, a chemical bond is formed.  This type of bond is called:
a)
covalent bond
b)
ionic bond
c)
crystal bond
d)
polyatomic bond
2.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
3.
What is a double bond?
a)
a bond between two atoms
b)
one pair of electrons shared between two atoms
c)
two pairs of electrons shared between two atoms
d)
James Bond's brother
4.
How many valence electrons does nitrogen have?
a)
3
b)
2
c)
5
d)
1
5.
Name CCl4
a)
carbon carbon tetraiodide
b)
carbon tetrachloride
c)
monocarbon tetrachloride
d)
water
6.
Give the formula for oxygen dichloride
a)
OCl2
b)

O2Cl2

c)
OCl
d)
O2Cl
7.
Give the formula for phosphorus trifluoride
a)
P3F
b)
PF
c)
PF3
d)
P3F3
8.
What type of bond forms when 2 or more electrons are SHARED?
a)
Covalent bond
b)
Incomplete bond
c)
Ionic bond
d)
Metallic bond
9.
What type of bond forms between two or more atoms that are charged (+/-)?
a)
Covalent bond
b)
Incomplete bond
c)
Ionic bond
d)
Metallic bond
10.
Which of the following is an example of an IONIC COMPOUND?
a)
NaCl
b)
H2O
c)
CO2
d)
NO
11.
Which of the following is an example of a COVALENT COMPOUND?
a)
H2S
b)
KI
c)
CaCl2
d)
MgO
12.
In covalent bonding, electrons are
a)
shared
b)
transferred
c)
wiped out
13.
Covalent bonds tend to happen between two
a)
metals
b)
nonmetals
c)
metal and nonmetal
14.
Outer shell electrons are called
a)
outer electrons
b)
valence electrons
c)
negatives
15.
Atoms want
a)
A full outer shell of electrons
b)
One electron short of a full shell
c)
kit kats
16.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
17.
How are covalent bonds explained?
a)
When one atom takes the other atom's electron
b)
When the atom shares an electron with an another atom
c)
When the two nucleus merge
d)
When the neutrons leave the nucleus
18.
What region of the periodic table contains atoms that form covalent bonds?
a)
the left side
b)
the middle
c)
the right side
d)
top left
19.
Are the atoms more stable when they are bonded together or when they are apart? 
a)
Bonded Together
b)
Apart
20.
How many valence electrons does nitrogen have?
a)
3
b)
2
c)
5
d)
1
21.
What is it called if there are three-pairs of electrons being shared?
a)
Triple bond
b)
Bond length
c)
Tribond
d)
Chocolate Mousse
22.
How many electrons should Carbon have around its Lewis dot structure?
a)
1
b)
3
c)
4
d)
5
23.
What is a diatomic element?
a)
a metal bonded with a nonmetal
b)
2 or more nonmetals bonded together
c)
2 or more metals bonded together
d)
2 atoms of the same element bonded together
24.
How many electrons are shared in a double bond?
a)
2
b)
4
c)
6
d)
8
25.
The number of bonds an element will form in a covalent compound will be equal to
a)
the number of valence electrons
b)
eight electrons
c)
the number of electrons needed to reach an octet
d)
the group number
26.
Which element below is not diatomic?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
sulfur
27.
The desire for an element to have 8 atoms around it is called 
a)
Octet Rule
b)
Resonance
c)
Ionization energy
d)
Electronegativity
28.
Which of the following elements wants to bond 3 times
a)
Oxygen
b)
Phosphorous
c)
Fluorine
d)
Germanium
29.
Which of the following is a Diatomic Molecule 
a)
K2
b)
C2
c)
S2
d)
N2
30.
What is the name of this Compound
a)
P2O5
b)
Phosphorous PentaOxide
c)
Diphosphorous pentaoxide
d)
Phosphourous Oxide
31.
What is the formula for this Compound
a)
PCl
b)
PCL5
c)
PCl5
d)
Phosphorous Penta Chloride
32.
Which of the following diatomic molecules will form a triple bond?
a)
H2
b)
Cl2
c)
O2
d)
N2
33.
What is the name of the covalent molecule BF3
a)
Bromide Trifluoride
b)
Bromine Trifluoride
c)
Monobromine Trifluoride
d)
Bromine Tetrafluoride
34.
What is the name of the covalent molecule C4H10?
a)
Tetracarbon Decahydroxide
b)
Tetracarbon Decahydride
c)
Carbon Hydroxide
d)
Tetracarbon Decahydrogen
35.
What is the name of the covalent molecule N6H7
a)
Hexanitrogen Heptahydride
b)
Heptanitrogen Hexahydride
c)
Nitrogen Hydroxide
d)
Hexanitride Heptahydride
36.
What is the formula of Silicon Tetrachloride?
a)
SiCl
b)
SiCl3
c)
SiCl4
d)
1Si4Cl
37.
What is the formula of Tricarbon Octafluoride?
a)
C3F8
b)
CF
c)
F3C8
d)
3C8F
38.
How many bonds does Carbon ALWAYS make?
a)
4
b)
1
c)
8
d)
3
39.
How many bonds does Fluorine ALWAYS make?
a)
1
b)
7
c)
3
d)
8
40.
What is the name of the covalent molecule H2O10?
a)
Dihydrogen Decaoxide
b)
Dihydride Decaoxide
c)
Hydrogen Oxide
d)
Decahydrogen Dioxide
41.
Which pair of elements make the same number of bonds?
a)
C and O
b)
F and H
c)
P and Br
d)
He and H
42.

Which of the following represent compounds?

a)

O2

b)

CO2

c)

Cl2

d)

NaCl

43.

Based on its location in the periodic table, we can tell that chlorine has ___ valence electrons needs ___ more electron(s) to become stable.

a)

7, 1

b)

1, 7

c)

1, 1

d)

7, 7

44.

The element nitrogen (N) has ___ valence electrons and needs ___ electrons to complete its octet.

a)

5 , 3

b)

3 , 5

c)

6 , 2

d)

2 , 6

45.

What type of chemical bond is being shown in the F2 molecule?

a)

single covalent bond

b)

double covalent bond

c)

triple covalent bond

d)

quadruple covalent bond

46.

Hydrogen has one valence electron and needs one more to become stable. Which of the atoms below is most likely to covalently bond with a single hydrogen atom?

a)

A

b)

B

c)

C

d)

D

47.

Single bonds are formed when ____ pair(s) of valence electrons are shared.

a)

one

b)

three

c)

two

d)

four

48.

What holds the atoms together in a covalent bond?

a)

The electrostatic attractions between the protons and neutrons.

b)

The electrostatic attractions between the shared protons.

c)

The electrostatic attractions between the electrons and protons in the nucleus.

d)

Ionic valence electron transfer.

49.

How many single bonds can carbon form?

a)

1

b)

3

c)

4

d)

5

50.

How many bonds can hydrogen form?

a)

1

b)

2

c)

7

d)

3

51.

How many double bonds could nitrogen form?

a)

1

b)

2

c)

3

d)

0

52.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

53.

This is a correct dot diagram for nitrogen (N)

a)

true

b)

false

54.
This could be the dot diagram of
a)
P
b)
Ar
c)
Na
d)
B
55.
This could be the dot diagram of 
a)
Ne
b)
Si
c)
Al
d)
Be
56.

In fluorine, how many pairs of electrons are not involved in bonding?

a)

3

b)

7

c)

6

d)

1

57.

Select all that apply as to the type of bonds carbon can form

a)

4 single

b)

2 double

c)

1 triple and 1 single

d)

1 double and 2 single

58.

How many bonds would sulfur likely form?

a)

7

b)

2

c)

6

d)

8

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