WorksheetsLewis Structure and VSEPR Quiz (4/18)
Total questions: 20
Worksheet time: 19mins
Name
Class
Date
1.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
2.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
3.
A covalent bond is
a)
a bond that shares electrons metallicaly
b)
A bond that shares electrons with non metals
c)
Metalloids bonding
d)
metals and nonmetals bonding
4.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
5.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
6.
How many electrons can be used in the Lewis Structure for NO3- (polyatomic anion with -1 charge)?
a)
23
b)
20
c)
18
d)
24
7.
What is the correct structure for BF3?
a)
Option A.
b)
Option B.
c)
Option C.
d)
Option D.
8.
Determine the type of bond in an oxygen molecule (O2). HINT: Use (IE - AE)/2 = # of bonds.
a)
Double covalent
b)
Single covalent
c)
Ionic
d)
Triple covalent
9.
If electrons are shared unequally then the bond is....
a)
Non-polar covalent
b)
Ionic
c)
Non-polar ionic
d)
Polar covalent
10.
If electrons are shared equally then the bond is....
a)
Non-polar covalent
b)
Ionic
c)
Non-polar ionic
d)
Polar covalent
11.
How strongly an atom attracts electrons of other atoms is called....................
a)
Ionization energy
b)
Electronegativity
c)
Electricity
d)
Nuclear force
12.
What is the name of the molecular geometry for this Lewis Structure?
a)
trigonal planar
b)
trigonal pyramidal
c)
tetrahedral
d)
bent
13.
What is the shape of this molecule?
a)
tetrahedral
b)
trigonal planar
c)
bent
d)
trigonal pyramidal
14.
In the correct Lewis structure for water, how many unshared pairs of electrons will oxygen have?
a)
1
b)
4
c)
3
d)
2
15.
What is the shape and polarity of CO2?
a)
linear and polar
b)
linear and nonpolar
c)
bent and polar
d)
bent and nonpolar
16.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
17.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
18.
Which atom has the largest atomic radius?
a)
potassium
b)
rubidium
c)
francium
d)
cesium
19.
As you move down the periodic table atoms get bigger. This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
20.
Atoms that have a high electronegativity, _______________.
a)
give up their electrons more easily.
b)
hold on to their electrons more tightly.
c)
have more electron shells.
100 %
