WorksheetsICP - Lewis Dot Structures and Covalent Bonds
Total questions: 20
Worksheet time: 31mins
Name
Class
Date
1.
What is the correct Lewis Dot Structure for ammonia NH3
a)
b)
c)
d)
2.
Which is the correct molecular structure for carbon dioxide?
a)
b)
c)
d)
3.
This is the correct dot diagram for sodium (Na)
a)
true
b)
false
4.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
5.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
6.
This is the correct dot diagram for nitrogen (N)
a)
true
b)
false
7.
This is a correct dot diagram for nitrogen (N)
a)
true
b)
false
8.
This is a correct dot diagram for magnesium (Mg)
a)
true
b)
false
9.
This is a correct dot diagram for carbon (C)
a)
true
b)
false
10.
This is a correct dot diagram for neon (Ne)
a)
true
b)
false
11.
Which Lewis Dot Model drawing correctly shows an O2 molecule?
a)
b)
c)
d)
12.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
13.
How many total valence electrons are participating in bonding in the molecule above?
a)
8
b)
4
c)
2
d)
3
14.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
15.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
16.
What type of bond forms between Be & F?
a)
no bond forms
b)
covalent bond
c)
ionic bond
d)
metallic bond
17.
What 2 types of atoms make a covalent bond?
a)
2 metals
b)
2 noble gases
c)
2 nonmetals
d)
1 metal & 1 nonmetal
18.
Covalent compounds
a)
contain a sea of electrons
b)
share electrons
c)
transfer electrons
d)
conduct electricity
19.
What usually forms a positive ion?
a)
metal
b)
nonmetal
c)
metalloid
d)
there is no way to tell
20.
What do atoms that form positive ions tend to do?
a)
lose electrons
b)
gain electrons
c)
lose protons
d)
gain protons
100 %
