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WorksheetsCovalent Bonding
Total questions: 35
Worksheet time: 47mins
What kind of elements participate in covalent bonds?
nonmetals
metals and nonmetals
metals
metalloids
How do atoms satisfy the octet rule in covalent bonding?
sharing electrons
transferring electrons
gaining electrons
giving up electrons
Which of the following molecules is an example of a covalent compound?
NaCl
H2O
CaO
MgCl2
Which of the following is a property of covalent compounds?
Conduct electricity in solid state
Low melting and boiling points
High melting and boiling points
Conduct electricity in liquid state
Which of the following elements is most likely to form a covalent bond?
Iron
Calcium
Chlorine
Sodium
Which of the following pairs of elements is most likely to form a covalent bond?
Magnesium and Chlorine
Potassium and Bromine
Carbon and Oxygen
Sodium and Fluorine
Which of the following is a typical property of covalent compounds?
Metallic luster
Low electrical conductivity
High melting point
High electrical conductivity
What is the primary characteristic of a covalent bond?
It involves the formation of a metallic lattice.
It involves the transfer of electrons from one atom to another.
It involves the sharing of electron pairs between atoms.
It involves the attraction between oppositely charged ions.
Which of the following elements is least likely to form a covalent bond?
Oxygen
Neon
Carbon
Hydrogen
Which of the following molecules is polar due to its covalent bonds?
H2O
CO2
CH4
O2
Which of the following is a characteristic of a nonpolar covalent bond?
Formation of ions
Transfer of electrons
Equal sharing of electrons
Unequal sharing of electrons
Which of the following molecules has a double covalent bond?
N2
O2
H2
Cl2
Which of the following molecules contains a triple covalent bond?
CO2
N2
CH4
H2O
What is the primary reason for the formation of covalent bonds between atoms?
To decrease atomic number
To increase atomic mass
To change the element's identity
To achieve a full outer electron shell
What type of covalent bond is formed when two atoms share two pairs of electrons?
Single bond
Quadruple bond
Double bond
Triple bond
In a polar covalent bond, which element holds the electrons closer to itself?
the more electronegative one
the less electronegative one
the larger one
the one with more electrons
A line between two elements in a Lewis diagram represents what?
a pair of electrons shared by those atoms
a negative charge
a single electron
electrons that belong to only one atom
When writing formulas for covalent compounds, how do you know how many of each element to include?
prefixes in the name
balancing the charges
differences in electronegativity
location on the periodic table
What determines if a covalent bond is polar or nonpolar?
differences in electronegativity
differences in number of electrons
whether the element is a metal or a nonmetal
differences in number of protons
What determines if a covalent molecule is polar or nonpolar?
symmetry
electronegativity
electrons
number of bonds
How many electrons does hydrogen need to have a full outer shell?
2
4
6
8
How many electrons does oxygen need to have a full outer shell?
2
4
6
8
Which group never participates in double or triple bonds?
7
6
5
4
What is a double bond?
two pairs of shared electrons
one pair of shared electrons
two electrons, one from each element
electrons that belong to only one atom
How many pairs of electrons are shared in a triple bond?
3
4
2
1
What is the maximum number of electron pairs that can be shared between two atoms?
3
4
1
2
Which of the following molecules is likely to be nonpolar?
H2O
CO2
NH3
CH3Cl
Which of the following elements can form a diatomic molecule with a covalent bond?
Neon
Helium
Argon
Oxygen
What is the primary factor that influences the strength of a covalent bond?
Number of shared electrons
Electronegativity difference
Bond length
Atomic size
Which of the following molecules has a polar covalent bond?
Cl2
N2
O2
HCl
Which of the following elements commonly forms a triple covalent bond?
Nitrogen
Oxygen
Hydrogen
Chlorine
What is the result of unequal sharing of electrons in a covalent bond?
Formation of an ionic bond
Formation of a nonpolar bond
Formation of a polar bond
Formation of a metallic bond
Which of the following is a characteristic of a molecule with a nonpolar covalent bond?
High solubility in water
Low melting point
Equal sharing of electrons
Unequal sharing of electrons
How many covalent bonds are created in a single ammonia molecule?
0
1
2
3
4
How many covalent bonds are created in a single water molecule?
0
1
2
3
4
