Unit 9 Notes- Chemical Nomenclature
Ionic Bonds
(________________ & _________________________________)
Monatomic Ions
Polyatomic Ions
Ions formed when an ________ loses
Ions formed when a _________________________
or gains an electrons. Positive and
develops an electrical charge. An ionic compound
negative monatomic ions form
containing a polyatomic ion in it is called a
__________ ionic compounds.
______________ ionic compound.
1. The ionic charges combine in the simplest ratio possible that allows
There are two
the positive and negative charges to balance out
rules to writing a
(____________________).
correct ionic
formula:
2. The cation (positive ion) is
___________________________________!!
Writing Ionic Compounds
Examples:
The Secret Weapon: Criss-Cross Rule
Examples:
Unit 9- pg. 1/3
Naming Ionic Compounds can be broken down into three scenarios:
Scenario #1: Binary compounds containing non-transitional metals
A. Give the cation its elemental
name
Examples:
1. KCl
ELEMENT
Sulfur
Nitrogen
Phosphorus
Fluorine
Oxygen
Chlorine
Bromine
Iodine
Selenium
2. AlP
3. Ca3N2
4. MgBr2
Naming & Writing Ionic Compounds
B. Then the Suffix ______ is added to the
__________ of the anion.
ION NAME
Sulfide
Nitride
Phosphide
Fluoride
Oxide
Chloride
Bromide
Iodide
Selenide
Scenario #2: Binary compounds containing transitional metals (_________________)
A. Determine the charge of the
metal and write its charge as
_______________________
after the metal’s name.
Examples:
1. PbCl2
B. Then the suffix “ –ide” is added to the root of
the anion.
2. PbCl4
3. SnO
4. SnO2
Scenario #3: Ionic compounds containing polyatomic ions
A. Name the cation appropriately
w/ polyatomic ion (using Roman
numeral is necessary).
Examples:
1. LiC2H3O2
2. AlPO4
3. Cu2SO4
B. Then the ____________________ is given
the appropriate name (polyatomic ion
name).
Tip: ALL ionic compounds are
made up of two halves; figure out
what the two halves are before
you try to name it. If you see that
there are more than two elements
in the compound; you are most
likely dealing with a polyatomic.
4. NH4NO3
Unit 9- pg. 2/3
Acid Nomenclature
Acids always have _________________ as the cation and the total compound will equal zero.
The name is determined by the ending of the anion.
[stem]ide hydro[stem]ic acid (binary)
[stem]ite  [stem]ous acid
[stem]ate[stem]ic acid
Examples:
1. HCl
2. HClO2
3. HClO3
4. HClO4
5. HNO2
6. HNO3
7. H2SO4
8. Hydrobromic acid
9. Bromic Acid
10.HI
11. H3PO4
LET’S PRACTICE 
Unit 9- pg. 3/3