NEW
Font size
S
M
L
XL
WorksheetsDrawing Lewis Diagrams Covalent Bonds
Total questions: 20
Worksheet time: 5mins
Name
Class
Date
1.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
2.
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
3.
Which of the following is NOT formed by a covalent bond?
a)
K2S
b)
H2O
c)
I2
d)
CO2
4.
What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
5.
What type of bond is shown in this image?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals Force
6.
Diatomic elements are defined as IDENTICAL elements that bond with each other (i.e. Oxygen with Oxygen). What type of bond should they form?
a)
Ionic
b)
Polar Covalent
c)
Nonpolar Covalent
d)
Van der Waals force
7.
What is the proper name for S2O2?
a)
Sulfur oxide
b)
Sulfur dioxide
c)
sulfur (II) oxide
d)
disulfur dioxide
8.
Why do atoms share electrons?
a)
To attain the electron configuration of a noble gas.
b)
To become ions and take a charge
c)
to increase the mass
d)
it's a nice thing to do.
9.
Which of the compounds below contains a single covalent bond?
a)
Br2
b)
SO
c)
HCl
d)
Both a and c
10.
Which element forms a diatomic molecule using a triple covalent bond?
a)
C
b)
N
c)
O
d)
P
11.
Which bond would be the least polar?
a)
H-F
b)
H-O
c)
H-H
d)
H-Br
12.
Which bond would be the most polar?
a)
H-I
b)
H-Br
c)
H-Cl
d)
H-F
13.
What is a polar molecule?
a)
One that has a partial negatitive on one end and a partial positive on the other
b)
a molecule with little vibration
c)
an ionic compound
d)
the nonpolar bonds are arranged sequentially
14.
For the structural formula shown, what is the chemical formula?
a)
NO
b)
N2O2
c)
NO2
d)
N2O
15.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
16.
How many electrons can be used in the Lewis Structure for : NO3 -
a)
23
b)
20
c)
18
d)
24
17.
What could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
18.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
19.
Which is the correct molecular structure for carbon dioxide?
a)
b)
c)
d)
20.
How many total valence electrons are participating in bonding in the molecule above?
a)
8
b)
4
c)
2
d)
3
Reset
