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WorksheetsLewis structure test
Total questions: 40
Worksheet time: 10hrs 0mins
What is the seven diatomic molecules?
H2,O2,N2,F2,Cl2,Br2, and I2
H2,AS2,N2,F2,Cl2,Br2, and I2
H2,O2,N2,F2,Cl2,Br2, and C2
H2,O2,N2,F2,Cl2,Mg2, and I2
Which diatomic molecule does not follow the octet rule?
O2
H2
N2
I2
What is the difference between an ionic and covalent bond?
Ionic: transfer of electrons; Ions formed; Metal and nonmetal
Covalent: share of electrons; molecules formed; nonmetals
Ionic: share of electrons; molecules formed; nonmetals
Covalent: transfer of electrons; Ions formed; Metal and nonmetal
How many electrons are shared within a single bond?
2
4
6
How many electrons are within a double bond?
2
4
6
How many electrons are in a triple bond?
2
4
6
Why do atoms bond?
They bond to become stable like noble gasses
They bond to lose electrons
to Have 8 electrons
They bond to become Florine
What type of bond is formed when electron pairs are shared unequally?
Polar covalent
Nonpolar covalent
Ionic
What type to bond is formed when one atom contributes both bonding electrons in a covalent bond; also an example?
Coordinate covalent bond; NH4+
polar covalent;NK
Nonpolar covalent; NP4
ionic; NK+
According to the VSEPR theory, why do molecules have different shapes?
The repulsion between electrons that adjust the shapes so they are as far away as possible.
The attraction between electrons that adjust the shapes so they are as close away as possible.
Why does water have a bent shape and carbon dioxide have linear shapes even though both have three atoms?
water is bent because oxygen has two unshared pairs of electrons whereas carbon dioxide has no unshared pairs so it's linear.
carbon dioxide is bent because carbon has two unshared pairs of electrons whereas water has no unshared pairs so it's linear.
What is the difference between shared and unshared(lone)pairs of electrons?
shared pairs of electrons are between 2 atoms; unshared or lone are not shared and not involved in bonding
shared pairs of electrons are between 2 atoms; unshared or lone are not shared
unshared or lone of electrons are between 2 atoms; shared pairs are not shared and not involved in bonding
What kind of bond is formed by side by side overlap of p orbitals?
pi bond
sigma bond
polar
ionic
What kind of bond is formed when two atomic orbitals overlap on the bond axis?
pi bond
polar
sigma bond
ionic
How many unshared pairs of electrons does phosphorus have in PH3
1
2
4
6
Which element or ion listed has the electron configuration , 1s22s2sp6?
Ne
Al+3
F-1
Na+1
all of them
1s22p22p63s23p6 is the configuration for which of these:
S-2
Ca+2
F-1
Na+1
Which of the following contains only nonpolar bonds?
HCl
Cl2
CH4
Which of the following is the most polar?
I2
CF4
H2S
CO
Which of the following contains an ionic bond?
CCl4
KCl
H2
SO2
Which of the following has a single covalent bond?
SiO2
Br2
N2
CO
In which of the following is the octet rule expanded to include 12 electrons?
H2O
SO2
NO3-1
SF6
How many polar covalent bonds are in NF3?
1
2
3
4
What is the shape of H2S
(a)
What is the shape of BF3
(a)
What is the shape of
CO2
(a)
What type of hybrid orbitals are in CH4
sp
sp2
sp3
What type of hybrid orbitals are in C2H4
sp
sp2
sp3
How many sigma and pi bonds are in C2H2?
(a)
When more than one Lewis Structure can be drawn for a molecule, Ex) NO-3
Resonance
pi bond
covalent
octet
What is the Lewis structure shape for SiO2
tetrahedral
linear
bent
octahedral
shape for SBr6?
Octehedral
pyramidal
tetrahedral
bent
What type of bond is NaBr
ionic
polar
nonpolar
What type of bond is NH3
Polar
nonpolar
ionic
What type of bond is Br2
ionic
polar
nonpolar
Polar or nonpolar molecules?
BF3
Np
P
Polar or nonpolar molecules?
H2O
Np
P
Polar or nonpolar molecules?
PCl3
NP
P
Polar or nonpolar molecules?
CO2
Np
P
Assign the formal charges?
(a)
