Naming Simple Ionic Compounds (Binary Compounds)
Note Taking Guide
 Chemical Bond – ____________________________________________________________
_________________________________________________________________________

Caused by:
○
Attraction between __________
○
Attraction of a positively charged nucleus and the negatively charged electrons of a
different atom.
 Two Types of Bonds:

Ionic Compounds
○

Covalent Compounds
○

A bond between two elements where electrons are ____________________ from
one element to another
A bond between two elements where electrons are ____________________
between the elements
Bonds form between the __________________ ________________ of each atom!
 Ionic bonds are formed between ions, and include both a ______________ and a
_______________.

Ion: a _________________ particle

Cation: ____________ one or more electrons to become positively charged
(______________)

Anion: ____________ one or more electrons to become negatively charged
(_______________)
 Ionic Bonds/Compounds:

Simple Ionic Compounds are also known as ________________________

There are ONLY _______ elements present

Always a ___________ and a __________________

The elements always come from the _____ and _____ blocks on the periodic table.
Oxidation Numbers/States:
What are the charges of each family? Identify them on the periodic table:
Practice: Identify the element symbol, and the oxidation number of that element.
Element Name
Iodine
Calcium
Oxygen
Neon
Carbon
Boron
Phosphorus
Sodium
Element Symbol
Oxidation Number/Charge:
Ionic Bonds: Writing compound formulas and names
 Compounds MUST be _______________________________

Charges MUST cancel each other
 The _____________ (cation) ALWAYS comes first
 The ________________ (anion) ALWAYS comes second
 Example:

Sodium (Na+1) and Oxygen (O -2)
○
Oxygen’s ______ charge needs to be cancelled out by sodium’s _______ charge.
○
We will need 2 sodium ions to cancel the 1 oxygen ion.

(Na)+1 + (Na)+1 + (O)-2 = 0 (this would be neutral)

So our compounds formula is: _____________ (2 sodiums and 1 oxygen)
 Drop and Swap Method:

The method that is used to
make compounds out of
ions.

Bring down and over the numerical value (______________________ the charge sign)
○

Write the chemical formula for sodium oxide: ___________________
Subscripts MUST be at the _____________________________________________
○
Example:
Calcium (+2) and Oxygen (-2)
Ca+2
O-2
(draw the arrows to show where the numbers go)
Ca2O2
Formula in the simplest whole number ratio: ______________

Write out the ions (symbol and charge) for each of the elements present
1. Drop and Swap
2. Simplify if Necessary
Strontium (Sr+2) Oxide (O-2)
Ionic Formula: _______________________
Complete the following table: (hint: some drop and swap and reduced forms may be the same)
Metal: (cation)
Calcium
Nonmetal: (anion)
Fluorine
Barium
Sulfur
Lithium
Phosphorus
Magnesium
Oxygen
Boron
Phosphorus
Cesium
Oxygen
Drop and Swap Form:
Reduced Form:
Writing Ionic Compound Names:
 Rules to Follow:
1. The name of the ____________ ALWAYS comes first
○
The metal’s name is the __________ as it is on the periodic table

Ex: sodium stays sodium
2. The name of the _______________ ALWAYS comes last
○
The nonmetal’s name changes.

The ending of the nonmetal will change to ______________.

Ex: Oxygen becomes ________________
Examples: How it works.
1. Ionic Formula: Na2O
1. Name the __________ directly from the periodic table (rule 1): _______________
2. the ending of the ____________ to _________ (rule 2): _________________
 Ionic Compound Name (put 1 and 2 together):
______________________________
2. Ionic Formula: CaCl2
1. Name the __________ directly from the periodic table (rule 1): _______________
2. the ending of the ____________ to _________ (rule 2): _________________

Ionic Compound Name (put 1 and 2 together):
______________________________
Complete the following table: (Remember the rules)
Ionic Compound
Formula:
KF
Al2O3
CaBr2
Li3P
Li2S
Complete the homework assignment.
Ionic Compound Name: