1. Bundle 2: Periodic Table and Bonding
IONIC BONDING
Bundle 2: Periodic Table and Bonding

2. This is the STRONGEST bond between elements.
Ionic bonding
An Ionic Bond is an electrostatic attraction between a metal and non- metal that involves a transfer of electrons.
This is the STRONGEST bond between elements.

3. What is an ionic bond?
An Ionic Bond (strongest) is the bond between a metal and non-metal that involves a TRANSFER of electrons
When an atom loses a valence electron to another atom, it becomes a (+) ion. This is a CATION.
When an atom accepts a valence electron from another atom, it becomes a (-) ion. This is an ANION.

4. Formation of an Ionic Bond
FULL OCTET

5. EXAMPLE Na Cl
1 valence e-
7 valence e-

6. Na Cl EXAMPLE Cation – [Na] +1 Anion – [Cl] -1 8 valence e-

7. Naming Ionic compounds (Nomenclature)
The FIRST name is the same as the CATION name
The SECOND name is the ANION name with the ending –IDE.
EXAMPLE
[Na]+ Sodium [Cl]- Chlorine
NaCl Sodium Chloride
Cation
Anion
Ionic Compound Name

8. Cation
Anion
Ca 2+
S 2-

9. Lewis Dot Structure 2+ 1- DROP AND SWITCH THE CHARGES
Shows the # of valence elecrons the atom has 2+ 1-
What is the charge on Ca?
What is the charge on F?
How many atoms of Ca and F are needed?
DROP AND SWITCH THE CHARGES

10. [ [ [ [ [ [ Ca 2+ F-1 Ca2 F1 CaF2 Drop Switch Lewis Dot Structure -1+2 -1
CaF2 [ [ [ [ [ [

11. Lewis Dot Structure Na and N[ [ -3 +1 [ [ 1+ 3-
Drop
Na N3
Switch +1 [ +1 -3 [ [
Na3N [ [ [ [ [ +1

12. [ [ Learning Check Potassium Fluoride Metal Non-Metal Yes +1
What is the Lewis Dot Structure for Potassium?
What is the Oxidation # (or charge) on Potassium?
Is Potassium a metal or non-metal?
Is Fluorine a metal or non-metal?
Can Potassium bond ionically with Fluorine?
What would the name of the compound be if Potassium bonded with Fluorine? [ +1
Metal
Non-Metal
Yes
Potassium Fluoride