Bonding
introduction
primary bonds
secondary bonds
bond energy

Primary bonds 6

Metallic Bond

In metallic bonding, the electrons are “surrendered” to a common pool and become shared by all the atoms in the solid metal.

Metallic bonding is found in metals and their alloys.

When the atoms give up their valence electrons, they form ions. These ions are held together by the electron cloud surrounding them.

positive ions and negative electron cloud

These bonds are less strong than ionic or covalent bonds. This gives reasonable strength and stiffness while allowing the atoms to slide past each other under high stress, which provides good ductility. The 'cloud' of free electrons is highly mobile, resulting in good electrical conductivity.


Metallic bonding

Metallic bonding generally results in a material being strong and stiff and gives:

  • High elastic modulus
  • High strength
  • Good electrical conductivity
  • Good ductility
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