WorksheetsLewis Diagrams, Shapes, Bond Angles
Total questions: 60
Worksheet time: 48mins
Name
Class
Date
1.
What is the shape of this molecule?
a)
Linear
b)
Bent
c)
Tetrahedral
d)
Trigonal pyramidal
2.
What is the shape of this molecule?
a)
Linear
b)
bent
c)
tetrahedral
d)
trigonal planar
3.
What is the shape of this molecule?
a)
linear
b)
bent
c)
triognal planar
d)
tetrahedral
4.
What is the shape of this molecule?
a)
Linear
b)
Bent
c)
Tetrahedral
d)
Trigonal Pyramidal
5.
What is the shape of this molecule?
a)
Linear
b)
Bent
c)
tetrahedral
d)
Trigonal Pyramidal
6.
What is the shape of this molecule?
a)
Linear
b)
Bent
c)
Tetrahedral
d)
Trigonal Pyramidal
7.
What is the shape of this molecule?
a)
Linear
b)
Bent
c)
Tetrahedral
d)
Trigonal Planar
8.
What is the shape of this molecule?
a)
Linear
b)
Bent
c)
Tetrahedral
d)
Trigonal Planar
9.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
10.
Which of the following is the correct Lewis structure for the compound PBr3?
a)
structure A
b)
structure B
c)
structure C
d)
structure D
11.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
12.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
13.
Each line in a Lewis Structure represents __________ electron(s).
a)
3
b)
2
c)
1
d)
4
14.
Which molecule below would have this shape?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
15.
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
16.
Three pairs of electrons are shared in a
a)
Single bond
b)
Double bond
c)
Triple bond
17.
tetra
a)
six
b)
Four
c)
Five
d)
seven
18.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
19.
Which substance would be insoluble in water?
a)
CaO
b)
NaCl
c)
PO3
d)
CuI
20.
Which compound would have a high melting point?
a)
CaCl2
b)
CO2
c)
PI3
d)
SO3
21.
Which substance would be a poor conductor?
a)
NaCl (s)
b)
CO
c)
Both CO and NaCl(s)
d)
NaCl(aq)
22.
What type of bond is this? Lithium with Fluorine?
a)
ionic
b)
covalent
23.
What type of elements will form an ionic bond?
a)
Metals + Metals
b)
Nonmetals + Nonmetals
c)
Metals + Nonmetals
d)
None of the above
24.
What is the formula for lithium oxide?
a)
LiO
b)
LiO2
c)
Li2O
d)
Li2O3
25.
Which of the following is NOT a property of ionic compounds?
a)
They conduct electricity when molten
b)
They conduct electricity when in solution
c)
They have high boiling points
d)
They are insoluble in water
26.
What is the charge on an Aluminium ion?
a)
3
b)
+3
c)
+2
d)
+1
27.
What will be the compound name of the following chemical formula?
NaCl
NaCl
a)
Potassium Chloride
b)
Sodium Chloride
c)
Calcium Chloride
d)
Sodium Chlorine
28.
Metals tend to
a)
gain electrons
b)
lose electrons
29.
If my charge becomes 2+ what does that say about me?
a)
I am stealing 2 electrons
b)
I am losing 2 electrons
c)
I am in period 2
d)
I have an atomic # of 2
30.
Ionic compounds can conduct when molten or dissolved because ...
a)
There are strong electrostatic attractions present
b)
The ions are free to move and conduct
c)
Ions can vibrate
d)
There is a metal present
31.
Ionic compounds have very high melting and boiling points because of the number of strong bonds/attractions
a)
True
b)
False
32.
How do positive and negative charges affect each other?
a)
No effect
b)
repel each other
c)
attract each other
33.
What is an ion?
a)
atoms that have gained or lost protons and become positive or negative
b)
Atoms of the same element with different numbers of neutrons
c)
a charged atom that has lost or gained one or more electrons.
34.
What happens when an ionic bond is formed?
a)
One atom loses electrons to another atom to form oppositely charged ions that attract each other.
b)
One atom loses protons to another atom to form oppositely charged ions that attract each other.
c)
One atom loses neutrons to another atom to form oppositely charged ions that attract each other.
35.
Which kinds of elements are usually involved in the formation of ionic bonds?
a)
Metals and non-metals
b)
non-metals only
c)
Metals only
36.
How is a negative ion formed and what is it called?
a)
atom gains electrons; called a cation
b)
atom gains electrons; called an anion
c)
atom loses electrons; called an anion
37.
What are the forces called that hold ions together?
a)
electrostatic forces
b)
magnetic forces
c)
nuclear forces
38.
Explain why group 1 elements such as sodium and lithium form a 1+ ion.
a)
They have too many protons so lose them to become stable
b)
They have one electron in outer shell and lose it to become stable.
c)
They have a full outer shell so gain electrons to become stable
39.
What is the charge on a calcium ion?
a)
2
b)
2-
c)
2+
40.
What is the charge on an oxide ion?
a)
2-
b)
2+
c)
1-
41.
What is the charge on a chloride ion?
a)
2 -
b)
1 +
c)
1 -
42.
What structure of regularly repeating ions do ionic compounds form?
a)
Compound structure
b)
Lattice structure
c)
Carbon structure
43.
What is the formula of the nitrate ion?
a)
HNO
b)
NO3-
c)
NaOH
44.
What is the formula of the sulphate ion?
a)
SO42-
b)
CuSO4
c)
SO3 1-
45.
What is the general name for a positive ion?
a)
anion
b)
ion
c)
Cation
46.
What is the charge on the ions of elements in group 1 of the periodic table?
a)
-1
b)
+2
c)
+1
47.
What is the charge on the ions of elements in group 6 of the periodic table?
a)
-2
b)
+2
c)
-1
48.
What is the formula for copper oxide?
a)
Cu2O
b)
CuO
c)
CuO2
49.
What is the name of the ionic compound containing potassium, chorine and oxygen?
a)
Potassium chloride
b)
Potassium chlorate
c)
Potassium chloroxide
50.
What is the formula for lead nitrate?
a)
PbNo3
b)
LeNi2
c)
Pb(NO3)2
51.
A covalent bond is formed when two atoms ____ electrons
a)
share
b)
lose
c)
transfer
d)
gain
52.
How does a calcium atom form a bond with an oxygen atom?
a)
They form a bond by sharing two pairs of electrons, both of which come from the calcium atoms.
b)
They form a bond by sharing two pairs of electrons, both of which come from the calcium atoms.
c)
They form a bond by transferring two electrons from the calcium atom to the oxygen atom.
d)
They form a bond by transferring two electrons from the oxygen atom to the calcium atom.
53.
Which of the following substances contain covalent bonds?
a)
KI
b)
MgCl2
c)
NaH
d)
NaOH
54.
Element X has the electronic configuration 2.8.3 and element Y has electronic configuration 2.7. Which is the correct formula for the compound formed between X and Y?
a)
XY
b)
XY3
c)
XY3
d)
X3Y3
55.
How many electrons are not bonded in a molecule of water?
a)
2
b)
4
c)
6
d)
8
56.
Which of the following statements about ionic compounds in solid state is true?
a)
A cation is only bonded to the anion(s) that it donates its electron(s) to.
b)
They can conduct electricity due to the presence of free-moving ions.
c)
Its structure is a giant lattice in which ions are held by electrostatic attraction.
d)
They have a simple molecular structure as a result of the transfer of electron(s) between the metal and non-metal.
57.
4. Which of the following statements is most accurate regarding melting and boiling points?
a)
a) Substance with simple covalent bonding have higher melting and higher boiling points than substances with ionic bonding.
b)
b) Substance with simple covalent bonding have higher melting and lower boiling points than substances with ionic bonding.
c)
c) Substance with simple covalent bonding have lower melting and higher boiling points than substances with ionic bonding.
d)
d) Substance with simple covalent bonding have lower melting and lower boiling points than substances with ionic bonding.
58.
8. Which of the following statements is most accurate regarding the structure of substances
a)
a) Ionic bonds are stronger than covalent bonds because it requires higher temperatures to melt ionic structures than simple molecular structures.
b)
b) Covalent bonds are stronger than Ionic bonds because it requires higher temperatures to melt simple molecular structures than ionic structures.
c)
c) Covalent bonds and Ionic bonds have a similar strength because Ionic and simple covalent molecules have similar melting and boiling points.
d)
d) Covalent bonds in simple molecules are stronger than Ionic bonds despite having lower melting and boiling points because covalent bonds are not broken, only the weak intermolecular forces are broken when simple covalent structures melt or boil.
59.
8. What type of Chemical Bonding is best defined as 'SHARING OF ELECTRONS '?
a)
a) Intermolecular Bonding
b)
b) Metallic Bonding
c)
c) Ionic Bonding
d)
d) Covalent Bonding
60.
9. What type of Chemical Bonding is best defined as 'SHARING OF ELECTRONS '?
a)
a) Intermolecular Bonding
b)
b) Metallic Bonding
c)
c) Ionic Bonding
d)
d) Covalent Bonding
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