What are Ionic Compounds
Ionic compounds are compounds that are composed of ________________ (positively charged ions) and
________________ (negatively charged ions).
They usually involve a ______________ (forms the _______________) and a ______________ (______________)
What causes atoms to form ions?

Every element wants to be like a _______________ _________________ and have _____ valance electrons
(Rule of _______________).

Elements will form chemical bonds to have 8 by either _______________ or _______________ electrons.

Ionic bonds deal with the ________________ of electrons and the attractive forces between the
________________ ________________ ions that form.

Every element that is close to having 8 valance electrons will _______________ or _______________
_______________ electrons to get to 8.

So, it boils down to stability

Atoms can form ________________ ions based on the ___________ of their electron configurations.

The charges are known as the ion’s ____________________ ____________________.

Remember, only ______________ have oxidation numbers. All atoms, elements, molecules, and compounds
have an oxidation number of ___________. (They are overall neutral)

Ions can have oxidation numbers ranging from ______ to ______.
Let’s look at Na and Cl
What is the electron configuration of Na?
How can Na become like a noble gas? It can ___________ an electron.
What is the electron configuration of Cl?
How can Cl become like a noble gas? It can ___________ an electron
To find the oxidation number of the ions that compose an
ionic compound, remember…

The elements from group 1 will be ____, group 2 will
be ____, group 13 will be ____, group 15 will be
____, group 16 will be ____, and group 17 will be
____. The ______________________ elements vary.

When dealing with ________________ atoms, the
first atom listed will have a ________________
number, the second will have a ________________
number.

The sum of the charges times their subscripts must equal __________________.
Find the oxidation number for each atom in the following molecules
NaCl
MgO
WS3
AlN
ZnBr2
PCl5
HgS
So, what makes a bond ionic?
1. Electrons are _________________
2. Usually involves a ______________ (+) and _______________ (-) (________________ sides of the table)
3. Products are called ________________
Ionic compounds are ______________ packed together to form _______________ ________________
Strong attraction of positive to negative result in the formation of a ______________ _______________
As a result, ionic compounds have a very _________________ bond strength.
When determining the strength of a bond, scientist look at three things: _____________________,
_+
_
+
+
__+
_
_
+
+
_
_
_
+
+
+
_+
_
_
+
+
_
_
+
+
+
_+_+__+
_________________ Point, and ___________________ Point
___________________, ___________________, ___________________Crystalline Structure
Ionic compounds form _____________ _______________ ____________________. But the structure will break in a
____________________ way if a force is applied.
An example: Salt - NaCl
Melting and Boiling Points
The intermolecular forces between ions are ________________ and
require __________________ _______________ to break.
More Energy = _______________________________
Therefore, ionic compounds have ___________ ________________ and ________________ points.
More Properties
When ionic compounds are solid… They are ____________________ of electricity
Why? They are so ________________ packed they can’t move.
However, when they are in water (or melt)…
_ +_
+
_ +_ +
+_ +_
The _________________ separate or ________________, then they can ________________ and can
________________ electricity.
A special name for ionic solutions - ________________ are ionic compounds that are dissolved in a medium.
The most common medium - ________________ (Hint: When you hear ________________, think _______________)
Ionic Bonds are ________________________________ when they are made.
When made, they release _________________
Energy, usually _________________, exits (exo) the system. And it takes ______________ to
__________________ ionic bonds after they are made. This energy is called the
_______________ energy.
More about Lattice Energies
The more ___________________ the value, the _________________ it is to break.
Lattice Energy is affected by:
 __________________ of Ions - Smaller ions are _________________ to pull apart.
 __________________ of the Ion - ________________ positive or negative charges are ________________ to
pull apart.