1. Ionic Bonds and Compounds
The wonderful world of Chemistry

2. Formation of Ionic compounds
Cation (+) + Anion (-)
Metal + non-metal
(+) ion + (-) ion
Electrically neutral
Protons = electrons
Attracted by electrostatic forces

3. Characteristics of Ionic Compounds
High Melting points
Strong Bonds
Brittle
Dissolve in water
Solid states do not conduct electricity
Liquid state does conduct electricity

4. Chemical Formulas CaO MgS NaCl
Chemical formulas tell us the kind and number of atoms in a representative unit of a substance
Formula Unit lowest whole number ratio of an ionic compound
CaO
MgS
NaCl