WorksheetsChemical Bonding Quiz
Total questions: 55
Worksheet time: 47mins
What is a chemical bond?
The energy required to pull two atoms apart
The force that holds atoms together in a structure
The speed at which atoms move in a molecule
The distance between two bonded atoms
What is a molecule?
A form of energy
An aggregate of atoms with unique properties
A single atom
A type of chemical reaction
What is the most important factor in chemical bonding?
The arrangement of electrons around the nucleus
The number of protons in the nucleus
The color of the atoms
The distance between bonded atoms
What is the bond energy?
The work required to pull two atoms apart completely
The energy released when two atoms bond
The energy required to move an electron to a higher energy level
The energy stored in a chemical bond
What is the concept of potential energy curves related to?
The number of electrons in an atom
The color of the atoms
The speed of atoms in a molecule
The energy of a system of two atoms
What is the molecular orbital model based on?
The arrangement of atoms in a molecule
The interaction of valence electrons with positive cores
The color of the molecule
The temperature of the molecule
What type of bond has circular symmetry?
π bond
φ bond
δ bond
σ bond
What is the shape of a molecule with sp3 hybridization?
Linear
Trigonal Bipyramidal
Tetrahedral
Octahedral
What is the bond order defined as?
The distance between two bonded atoms
The energy required to break a bond
The difference between the number of protons and electrons
The difference between the number of bonding and nonbonding electrons
What is the purpose of hybrid orbitals in chemical bonding?
To determine the color of a molecule
To explain the geometric structure of molecules
To store energy in a molecule
To increase the speed of atoms in a molecule
Which of the follow does NOT apply to noble gases?
Noble gases are stable.
Noble gases are very very reactive.
Noble gases have 8 valence electrons.
Noble gases are have full electron shells.
The bonding of a metal and non-metal is known as a _____________________.
Covalent bond
Hydrogen bond
Metallic bond
Ionic bond.
Why do atoms share electrons in covalent bonds?
they are programmed to do this
to attain a noble-gas electron configuration
to become more polar
to increase their number of protons
How do atoms achieve noble-gas electron configurations in triple covalent bonds?
One atom completely loses two electrons to the other atom in the bond.
Two atoms share two pairs of electrons.
Two atoms share six electrons.
Two atoms share one electron.
What characteristic of metals makes them good electrical conductors?
Their crystal structures can be rearranged easily.
They have mobile protons that move around.
They have mobile ions that float around.
They have mobile valence electrons.
Which of the following pairs of elements is most likely to form an ionic compound?
potassium and sodium
nitrogen and sulfur
oxygen and chlorine
magnesium and fluorine
How many valence electrons are transferred from the nitrogen atom to potassium in the formation of the compound potassium nitride?
none of the valence electrons are transferred
1
2
3
Which of the following occurs in a covalent bond?
electrons are transfer
electrostatic forces take over
electrons are shared to always achieve an octet
electrons are shared in order to achieve Nobel gas configuration
In covalent bonds, the valence electrons
are shared evenly between the atoms
are shared, but attracted more to the element with the lower electronegativity
transfer from the metal to the nonmetal
are shared, but attracted to the element with the higher electronegativity
Which of the following occurs in an ionic bond?
valence electrons are shared
Two atoms share two electrons.
Oppositely charged ions attract.
Like-charged ions attract.
What is the net overall charge on an ionic compound?
0
1+
2+
3+
How do metals obey the octet rule when reacting to form compounds?
they gain electrons
they lose all of their valence electrons
they lose some of their valence electrons
they share electrons
What is the name given to the electrons of an atom, which are available for chemical bonding?
orbital electrons
valence electrons
anions
cations
How many valence electrons are in an atom of aluminum?
13
3
4
5
How do you use the periodic table to determine the number of valence electrons in an atom of an element?
read the period number
for groups 1 and 2 it is the group number, for groups 13, 14, 15, etc., it is 3, 4, 5, etc.
read the electronegativity number
it is the group number exactly
Is this molecule polar or nonpolar?
polar
nonpolar
Type of bond between Br & Br
Ionic
Polar Covalent
Nonpolar Covalent
Use your knowledge to predict what type of bond would form between calcium and bromine.
non-polar covalent
polar covalent
ionic
metallic
Use your knowledge to predict what the following compound is classified as.
non-polar covalent
polar covalent
ionic
metallic
How many unpaired valence electrons does an oxygen atom have?
1
2
3
4
Covalent compounds are formed when ________________ bond by _______________ their electrons.
a metal and a non-metal, transferring
non-metals, transferring
non-metals, sharing
a metal and a non-metal, sharing
Which of the following is considered an ionic compound?
silicon trichloride
sulfur dioxide
calcium chloride
diphosphorous tetroxide
The oxidation number of an element is the charge of the element when it becomes an ion in order to be stable.
True
False
How many valence electrons will a lithium atom lose when it forms a bond with chlorine to form lithium chloride?
1
2
3
7
What is the correct formula for CH4?
monocarbon tetrahydride
carbon hydroxide
carbon tetrahydride
carbon tetrahydroxide
What is the correct formula for calcium permanganate?
Ca(MnO)
Ca(MnO4)
Ca2(MnO4)
Ca(MnO4)2
A unknown chemical material was found in a lab. The material was shiny, conductive, and bent easily into different shapes. What could the material have most likely been made out of?
Chlorine
Selenium
Argon
Tungsten
What kind of bond is a result of four electrons being shared?
single bond
double bond
triple bond
Which of the following is the correct Lewis Dot for water, H2O?
A
B
C
D
What kind of bond will form between two nitrogen atoms, N2?
single bond
double bond
triple bond
What is the name for N2O4?
nitrogen oxide
nitrogen (IV) oxide
dinitrogen tetraoxide
dinitrogen tetroxide
What is the formula for carbon monoxide?
CO
Co
CO2
C2O
What is the correct name for FeCl2?
iron dichloride
iron chloride
iron chlorate
iron (II) chloride
What is the formula for gallium fluoride?
GaF
Ga3F
GaF3
Ga2F3
What is the correct name for Cs2S?
cesium disulfide
cesium (I) sulfide
cesium sulfide
carbon disulfide
What type of bond is considered a covalent bond?
KI
MgCl2
SF8
NaOH
Which of the following compounds is a result of the transfer of valence electrons from a cation to an anion?
H2O
MgCl2
PCl3
N2O4
What type of bond occurs between two or more metals that results in the formation of a "sea of electrons"?
ionic
polar covalent
non-polar covalent
metallic
What type of bond is from the result of electrons being shared but not equally due to a difference in electronegativity?
ionic
polar covalent
non-polar covalent
metallic
The elements located in groups 3-12 are known as the...
alkali metals
halogens
transition metals
rare earth metals
Nitrogen can be classified as a....
metal
non-metal
metalloid
solid at room temperature
What type of bond would most likely form between a sodium and a bromine?
ionic
polar covalent
non-polar covalent
metallic
What kind of bond would most likely form between a hydrogen and a hydrogen?
ionic
polar covalent
non-polar covalent
metallic
Why do atoms form chemical bonds?
To have a stable noble gas configuration
To have a complete outermost shell
To satisfy the octet rule
All of the above
