Smooth Operater said:
hello,
what exactly is metallic bond? how is it formed? Thanks. I know it's not ionic bond for sure.
Metallic bonding is the bonding within metals. It involves the delocalized sharing of free electrons among a lattice of metal atoms. Thus, metallic bonds may be compared to molten salts.
Metal atoms typically contain a high number of electrons in their valence shell compared to their period or energy level. These become delocalized and form a Sea of Electrons surrounding a giant lattice of positive ions.
Metals seem to have higher boiling and melting points which might suggest stronger bonds between the atoms.
Metallic bonding is non-polar, in that there is no (for pure elemental metals) or very little (for alloys) electronegativity difference among the atoms participating in the bonding interaction, and the electrons involved in that interaction are delocalized across the crystalline structure of the metal.
The metallic bond accounts for many physical characteristics of metals, such as strength, malleability, ductility, conduction of heat and electricity, and luster. See also chemical bond.
Metallic bonding is the electrostatic attraction between the metal atoms or ions and the delocalised electrons. This is why atoms or layers are allowed to slide past each other, resulting in the characteristic properties of malleability and ductility.
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