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WorksheetsCovalent Compounds
Total questions: 20
Worksheet time: 19mins
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.
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
4.
How many valence electrons does nitrogen have?
a)
3
b)
2
c)
5
d)
1
5.
What can be generalized about covalent bonds?
a)
Electrons will be exchanged.
b)
Electrons will be transferred.
c)
Electrons will be given and taken.
d)
Electrons will be shared.
6.
What is it called if there are three-pairs of electrons being shared?
a)
Triple bond
b)
Bond length
c)
Tribond
d)
Chocolate Mousse
7.
How many electrons are shared in a double bond?
a)
2
b)
4
c)
6
d)
8
8.
When two nonmetals do not share electrons evenly, the resulting covalent bond will be
a)
nonpolar
b)
polar
c)
ionic
d)
metallic
9.
A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?
a)
1
1
1
b)
3
c)
4
d)
6
10.
Compared to ionic compounds, molecular compounds generally have...
a)
good conductivity
b)
greater densities
c)
more chemical bonds
d)
a low boiling point
11.
Compared to ionic compounds, molecular compounds generally have...
a)
stronger chemical bonds
b)
poor conductivity
c)
a high melting point
d)
lower densities
12.
In a(an) POLAR bond, one atom pulls on the shared electrons more than the other atom.
a)
True
b)
False
13.
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.
14.
How many valence electrons does hydrogen have?
a)
4
b)
3
c)
2
d)
1
15.
Outer shell electrons are called
a)
outer electrons
b)
valence electrons
c)
negatives
d)
super electrons
16.
Is Hydrogen considered a metal or a non-metal?
a)
Metal
b)
Non-metal
17.
In the compound N2O, what does the subscript 2 indicate?
a)
There are 2 sodium atoms for each atom of oxygen
b)
There are 2 nitrogen atoms for each atom of oxygen
c)
There are 2 oxygen atoms for each atom of nitrogen
d)
Nitrogen atoms are twice a large as oxygen
18.
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
19.
Valence electrons are found
a)
in the innermost energy level of an atom
b)
in the middle energy levels of an atom
c)
in the outermost energy levels of an atom
20.
How many Aluminum atoms are in Al2O3?
a)
3
b)
5
c)
2
d)
1
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