Metallic Bonding

Metallic Bonds occur between metallic atoms. The valence electrons are easily released from the metals and then shared amongst all atoms in the metal and are allowed to flow freely. We call these 'delocalized electrons' that make a sea of electrons.

The metallic bond is a strong bond. Metallic bonds allow substances to be good conductors, malleable, ductile and have high melting points. The substances usually corrode easily by oxidizing.

Conductivity - allows the flow of electricity or heat through a substance (because electrons are not held by the nuclei of the atoms)

Ductile - easily drawn into a wire.

Malleable - can be shaped or struck with a hammer without breaking or shattering.

Corrode - get damaged through chemical reactions.

Oxidizing - changing from a metal to an oxide by losing electrons and bonding with oxygen. Ex. copper metal becomes copper oxide as it changes over time to the green color often seen on copper statues (see below).

Alloys are produced when two metals form a metallic bond. Though a bond is formed, the alloy is a mixture of elements. The alloy is usually stronger and less likely to corrode than the metals individually.

As mixtures, alloys can be separated through physical means (usually melting). To get substances free from impurities, other chemicals may be introduced to force chemical reactions.

Electroplating can be used to create an alloy.

Credits:

Created with images by blickpixel - "thread cutter taps drill" • MonikaP - "king artus metal" • gssavage - "The Boxer"

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