Ionic bonding occurs when atoms combine to form ions that are held together by electrostatic attraction between oppositely charged ions. Metals bond ionically with nonmetals by transferring electrons from the metal to the nonmetal, forming cations and anions that bond to create an electrically neutral compound. Examples provided are sodium (Na+) bonding with fluorine (F-), magnesium (Mg2+) bonding with chlorine (Cl-), and aluminum (Al3+) bonding with oxygen (O2-).

1. Ionic Bonding

2. Ion Quiz…
Give the Ion Symbol that will be formed for each
atom:
1. Sulfur
2. Boron
3. Nitrogen
4. Magnesium

3. What do these compounds have in
common???
• C12H22O11 sugar
• C2H5OH ethanol
• C6H8O6 vitamin C

4. Chemical Bonding
When atoms combine to form new, more stable
substances.

5. Ionic Bonding
The positive and negative ions form and attract
each other, holding the structure together (it’s
a strong bond).
+ -
+ -
Will only happen if you have one metal and one
nonmetal!

6. Na-Sodium F-Flourine
11+ 9+
Na+1 F-1

7. Atoms Ionicly Bond to become a
NEUTRAL compound.
Bond Sodium & Fluorine:
Na+1 + - F-1
Always
write the
Metal FIRST
Compound Formed: NaF
Bond Magnesium & Chlorine:
Mg+2 + - Cl-1
+ - Cl-1
Compound Formed: MgCl2

8. Bond Aluminum & Oxygen:
Al+3 + - O -2
+ -
+ - O-2
Al+3 + -
+ - O-2
+ -
Compound Formed: Al2O3