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WorksheetsIonic and Covalent Bonds
Total questions: 25
Worksheet time: 14mins
Name
Class
Date
1.
Which type of bond has one pair of electrons shared between atoms?
a)
ionic
b)
single covalent
c)
metallic
d)
double covalent
2.
Which is described as the force holding atoms together?
a)
formula unit
b)
cation
c)
lattice
d)
chemical bond
3.
How many single covalent bonds can carbon form?
a)
2
b)
1
c)
4
d)
3
4.
Which category of elements is commonly used to make computer chips and solar cells due to their ability to conduct electricity only under certain conditions?
a)
metals
b)
metalloids
c)
nonmetals
d)
noble gases
5.
Which is true of binary ionic compounds?
a)
They consist of only 2 atoms.
b)
They have bonds that share 2 valence electrons.
c)
They contain 2 different anions.
d)
They consist of atoms of only 2 element types.
6.
In the compound PCl3, how many total valence electrons are present?
a)
24
b)
4
c)
26
d)
8
7.
Which is not a diatomic molecule in nature?
a)
fluorine
b)
nitrogen
c)
boron
d)
bromine
8.
How many total valence electrons are available in the ion NO3-?
a)
9
b)
22
c)
16
d)
24
9.
Identify the period and group numbers of the element with the electron configuration [Ne]3s23p4.
a)
period 2, group 4
b)
period 3, group 4
c)
period 3, group 16
d)
period 2, group 16
10.
Which is the charge that results when oxygen becomes an ion?
a)
+3
b)
+2
c)
-2
d)
-3
11.
Which is the correct name for the compound FeS?
a)
iron (II) sulfide (II)
b)
iron (II) sulfide
c)
iron (I) sulfide
d)
iron sulfide
12.
Which property describes how much energy must be added to an atom to remove an outermost electron?
a)
atomic radius
b)
ionic radius
c)
electronegativity
d)
ionization energy
13.
How many single covalent bonds can halogens form?
a)
4
b)
3
c)
1
d)
2
14.
Group 13 (3A) elements tend to most often acquire which charge when they form ions?
a)
-3
b)
+5
c)
+3
d)
-5
15.
Fluorine belongs to group 7A. How many covalent bonds are formed between 2 fluorine atoms?
a)
4
b)
2
c)
1
d)
3
16.
If the electronegativity of H is 2.20 and of Cl is 3.55, which type of bond is formed when HCl is made?
>1.7 = ionic
0.4-1.7 = polar covalent
<0.4 = nonpolar covalent
>1.7 = ionic
0.4-1.7 = polar covalent
<0.4 = nonpolar covalent
a)
polar covalent
b)
covalent
c)
polar ionic
d)
ionic
17.
Which category of elements have the property of being malleable and ductile?
a)
gases
b)
metals
c)
metalloids
d)
nonmetals
18.
A formula unit of calcium bromide has 2 bromide ions corresponding to each calcium ion in the compound. What is the formula unit of calcium bromide?
a)
Ca2Br2
b)
Ca2Br
c)
CaBr
d)
CaBr2
19.
In which pair is the one on the left larger than the one on the right?
a)
Na, Rb
b)
S, Mg
c)
Br, Br-
d)
K, K+
20.
A compound has the formula X3Y. For every 15 X atoms present in this compound, how many Y atoms are there?
a)
3
b)
15
c)
5
d)
45
21.
Which is the most important characteristic in determining an element's chemical properties?
a)
the number of protons and neutrons in its nucleus
b)
which period it is found in
c)
the number of valence electrons it contains
d)
its outermost energy level
22.
Electrons that are free to move in a metal are referred to as...
a)
localized electrons
b)
delocalized electrons
c)
electrostatic electrons
d)
cations
23.
The prefix for naming five of a nonmetal element in a compound is...
a)
penta
b)
octo
c)
octet
d)
tri
24.
When a chemical bond is formed, the constituent atoms acquire the stable valence electron configuration of noble gases, which is referred to as a(n)...
a)
pentet
b)
octet
c)
octagon
d)
noble gas bond
25.
An ionic bond results due to the __________ attraction between 2 oppositely charged ions.
a)
delocalized
b)
weird
c)
electrostatic
d)
ionization
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