WorksheetsLearning Module 21 - Covalent Lewis Structures
Total questions: 14
Worksheet time: 28mins
Name
Class
Date
1.
A lone pair is defined as
a)
A pair of bonding electrons
b)
One non-bonding electron
c)
A pair of non-bonding electrons
d)
A pair of electrons on the central atom
2.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
3.
Which molecule would have this molecular geometry?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
4.
What molecule could this be?
a)
BF3
b)
CH4
c)
H2O
d)
CO2
5.
What molecule could this be?
a)
H2O
b)
CCl4
c)
PCl5
d)
NaCl
6.
Who could this molecule be?
a)
CH4
b)
CO2
c)
PCl5
d)
BF3
7.
Who could this be?
a)
CO2
b)
NH3
c)
H2S
d)
CH4
8.
Who could this be?
a)
H2O
b)
NH3
c)
CO2
d)
CH4
9.
What molecular geometry would PH3 have?
a)
Trigonal Pyramidal
b)
Trigonal Bipyramidal
c)
Bent
d)
Linear
10.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
11.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
12.
What is the molecular shape of a molecule with 2 bonded atoms and 2 lone pairs?
a)
Linear
b)
Bent
c)
Tetrahedral
d)
See-Saw
13.
What is the molecular shape of a molecule with 3 bonded atoms and 2 lone pairs?
a)
T-Shape
b)
Trigonal Bipyramid
c)
See-Saw
d)
Square Planar
14.
What is the molecular shape of a molecule with 5 bonded atoms and 1 lone pair?
a)
Octahedral
b)
Pentagon
c)
Square Pyramid
d)
Square Planar
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