WorksheetsCovalent Bonds
Total questions: 23
Worksheet time: 18mins
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.
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
4.
In an electron dot diagram, two pairs of shared electrons represents a ...
a)
single bond
b)
double bond
c)
triple bond
d)
quadruple bond
5.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
6.
In covalent bonding, electrons are
a)
shared
b)
transferred
c)
wiped out
7.
What is it called if there are three-pairs of electrons being shared?
a)
Triple bond
b)
Bond length
c)
Tribond
d)
Chocolate Mousse
8.
Atoms want
a)
A full outer shell of electrons
b)
One electron short of a full shell
c)
kit kats
9.
Outer shell electrons are called
a)
outer electrons
b)
valence electrons
c)
negatives
10.
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.
11.
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
12.
How many valence electrons does nitrogen have?
a)
3
b)
2
c)
5
d)
1
13.
Atoms want
a)
A full outer shell of electrons
b)
One electron short of a full shell
c)
kit kats
14.
Outer shell electrons are called
a)
outer electrons
b)
valence electrons
c)
negatives
15.
The covalent bond forms between
a)
a metal and nonmetal
b)
a nonmetal and nonmetal
c)
a metal and metal
16.
A neutral group of atoms held together by covalent bonds is a
a)
chemical formula
b)
molecular formula
c)
molecule
d)
polyatomic ion
17.
Lewis Diagrams show
a)
all of the electrons in an atom
b)
only the electrons in the outermost occupied electron shell
c)
the total number of electrons
d)
the electrons that form bonds
18.
Hydrogen has 1 valence electron. How many electrons does each hydrogen atom have to share to fill its valence shell?
a)
1
b)
2
c)
3
d)
4
19.
Nitrogen has 5 valence electron. How many electrons does each nitrogen atom have to share to fill its valence shell?
a)
1
b)
2
c)
3
d)
4
20.
Oxygen has 6 valence electrons. How many covalent bonds can each atom form?
a)
1
b)
2
c)
3
d)
4
21.
What does it mean for an atom to have an octet?
a)
It has gained, lost or shared electrons resulting in the atom having 8 valence electrons
b)
The atom has stability
c)
The atom resembles a Nobel Gas
d)
All of these
22.
Which of the following elements can never have 8 valence electrons through forming covalent bonds?
a)
Hydrogen
b)
Helium
c)
Lithium
d)
Carbon
23.
What is a diatomic element?
a)
An element in Group 2
b)
A Noble Gas
c)
A Halogen
d)
An element that covalently bonds to itself
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