Strength of Metallic Bonds
What holds a metallic bond together is the attraction
between the positive kernels and the negative electron sea.
The strength of the metallic bond is derived primarily from
the amount of the charges in the system.
  • The larger the amount of positive charge on the
    metallic nuclei, the greater the strength of the metallic
    bond.
  • The greater the number of valence electrons
    contributed to the electron sea, the greater the
    strength of the metallic bond.
Malleability and Ductility
Metallic bonds are omni-directional. They do not have any geometric requirements
which need to be fulfilled. Think of the marbles surrounded by water, in a box. The
marbles can be pushed anywhere within the box and the water will follow them,
always surrounding the marbles. Because of this unique property, metallic bonds
can maintain their existence when pushed and pulled in all sorts of ways. As a
result, metals are known for their flexibility -- thus they are malleable and ductile.
  • If a metal is subjected to a force, the kernels can slide around on the layer
    of electrons.
  • As the kernels move to new positions, the bonds will not break, because of
    their omni-directional nature.
Metallic Bonds  - Malleablilty and Ductility