Name
Period
Date
Chemical Bonding
Introduction to Bonding
A chemical bond is an interaction between two elements that chemically combine the elements
together. There are three types of bonds: Ionic, Covalent, and Metallic.
DEFINE:
IONIC BONDS:
____________________________________________________________________________________________________
COVALENT BONDS:
____________________________________________________________________________________________________
METALLIC BONDS:
____________________________________________________________________________________________________
POLYATOMIC ION:
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Bonding Comparison Chart
IONIC
COVALENT
METALLIC
Types of Atoms
Involved
How are the
bonds formed?
Physical State of
Matter
Electrical
Conductivity
Compound
Names and
Formula Rule
N/A
DIRECTIONS: Write the following elements in the chart and create
chemical formula.
IONIC BONDING:
1. potassium and bromine
Ion Name
Ion Symbol
Anion/Cation
Potassium
K+1
Cation
Bromine
Br-1
Anion
How Many
Atoms
needed?
Chemical Formula
2. potassium and oxygen
Ion Symbol
Anion/Cation
How Many
Atoms
needed?
Chemical Formula
Ion Symbol
Anion/Cation
How Many
Atoms
needed?
Chemical Formula
Ion Symbol
Anion/Cation
How Many
Atoms
needed?
Chemical Formula
Non metal Name
How Many
Atoms
needed?
Chemical Formula
Hydrogen
1
Fluorine
1
Ion Name
3. magnesium and bromine
Ion Name
4. aluminum and nitrogen
Ion Name
COVALENT BONDING:
5. Hydrogen and Fluorine
6. Phosphorus Trioxide
Non metal Name
7. Dihydrogen Monoxide
How Many
Atoms
needed?
Chemical Formula
How Many
Atoms
needed?
Chemical Formula
How Many
Atoms
needed?
Chemical Formula
Metal Name
How Many
Atoms
needed?
Chemical Formula
Scandium
4
Copper
2
Non metal Name
8. Sulfur Trioxide
Non metal Name
METALLIC BONDING:
9. Tetrascandium dicopper
10. Dimolybdenum Trizinc
Metal Name
How Many
Atoms
needed?
Chemical Formula
How Many
Atoms
needed?
Chemical Formula
How Many
Atoms
needed?
Chemical Formula
11. Cobalt Diosmium
Metal Name
12. Pentasodium Tricadmium
Metal Name
POLYATOMIC ION:
Compounds that have both a covalent and ionic bond . The prefix or suffix can change based
on the type of ion.
BrO31-
BrO21-
Bromate ion
CO32-
Bromite ion
CO22-
ClO31-
ClO21-
IO31-
IO21-
NO31-
NO21-
PO43-
PO33-
SO42-
SO32-
“normal”
1 less oxygen
Empirical and Molecular Formulas
Write the empirical formula for each of the following molecular formulas.
1. N2O4
1. ______________________
2. NO2
2. ______________________
3. C2H6
3. ______________________
4. CH4
4. ______________________
5. C6H12O6
5. ______________________
Write a molecular formula for each of the empirical formulas below.
6. HO
6. ______________________
7. CS2
7. ______________________
8. Na3N
8. ______________________
9. K2Cr2O7
9. ______________________
10. CH2O
10. ______________________