1. Chemical Bonds
Part 4
Metalic Bonding

2. How Metals Bond
Metallic bonds account for many physical characteristics of metals, such as
Strength
Malleability
Ductility
conduction of heat and electricity
luster

3. A Few Facts
The outer electrons of metals are not very strongly held by the nucleus
So they stray easily and can move from one atom to the next
Think of a “sea of electrons”
Outer energy levels overlap like covalent bonds

4. Bond found in metals; holds metal atoms together very strongly
Metallic Bonds
Bond found in metals; holds metal atoms together very strongly

5. A Sea of Electrons

6. Metallic Bonds: Mellow dogs with plenty of bones to go around

7. Metals Form Alloys Metals do not combine with metals.
They form Alloys which is a solution of a
metal in a metal.
Examples are steel, brass, bronze and pewter.

8. The End