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WorksheetsISCA Chemistry: Covalent and Metallic Bonding
Total questions: 23
Worksheet time: 21mins
Name
Class
Date
1.
What can be generalized about covalent bonds?
a)
Electrons will be exchanged.
b)
Electrons will be transferred.
c)
Electrons will be given and taken.
d)
Electrons will be shared.
2.
What is it called if there are three-pairs of electrons being shared?
a)
Triple bond
b)
Bond length
c)
Tribond
d)
Chocolate Mousse
3.
Which is the correct molecular structure for carbon dioxide CO2?
a)
b)
c)
d)
4.
Define the term allotropes
a)
Atoms with same proton number but different number of neutrons
b)
Atoms with same proton number but different mass number
c)
Atoms in different arrangement in structure
d)
Atoms in different arrangement and different physical form
5.
Which of the following is true about C60 ?
a)
Each carbon bonded covelently to 3 other carbon atoms
b)
Each carbon bonded covelently to 4 other carbon atoms
c)
2 single and 2 double bonds in its structure
d)
Hexagonal and pentagonal in shape
6.
Define the term metallic bonding
a)
Attraction between positive nuclei and electrons
b)
Forces attraction between nuclei and electron
c)
Forces attraction between nuclei and sea of electrons
d)
Electrostatic attraction between nuclei and sea of electrons
7.
Why do metals conduct
a)
They are shiny
b)
The electrons are held tightly within the lattice
c)
The electrons are delocalised and able to move
d)
The electrons are shared between two metal ions
8.
Which consists of carbon atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
9.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
10.
Which of these is covalent?
a)
NaCl
b)
Pb(NO3)2
c)
CO2
d)
AlCl3
11.
Why is graphite so soft?
a)
A. The atoms are arranged in hexagons in layers that are held together strongly
b)
B. The atoms are arranged in hexagons in layers that are held together weakly
c)
C. Carbon is strongly bonded to 3 other carbon atoms.
d)
D. Carbon is weakly bonded to 3 other carbon atoms.
12.
Formulae of these might include H2O
each molecule contains 1 O and 2H atoms
each molecule contains 1 O and 2H atoms
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent
13.
What are the two elements called that form in a covalent bond?
a)
cation and anion
b)
metal and nonmetal
c)
metal and metal
d)
nonmetal and nonmetal
14.
which of the following are examples of a diatomic molecule or compound
a)
N2
b)
CO2
c)
H20
d)
O2
e)
Methane (CH4)
15.
How many valence electrons does nitrogen have?
a)
3
b)
2
c)
5
d)
1
16.
Low melting point and low solubility in water are general properties of ______________________ compounds
a)
ionic
b)
covalent
c)
chemical
d)
glucose
17.
The chemical formula shows one carbon atom bonded to __________ oxygen atoms.
a)
one
b)
two
c)
three
d)
four
18.
How many covalent bonds does carbon need to form in order to have a full octet?
a)
2
b)
3
c)
4
d)
5
19.
Which of the following molecules have a shape similar to the shape shown?
a)
Silicon dioxide, SiO2
b)
Carbon dioxide, CO2
c)
Water, H2O
d)
Ammonia, NH3
20.
What type of bond is illustrated above?
a)
Metallic
b)
Ionic
c)
Covalent
d)
Wiggly
21.
What is the atomic number of Carbon?
a)
2
b)
6
c)
93
d)
14
22.
How many electrons are shared in a double bond?
a)
2
b)
4
c)
6
d)
8
23.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
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