Year 11 Chemistry Chapter 6 Glossary
Mineral: A naturally occurring compound of a
metal.
Ore: A mineral from which a metal may be
economically extracted.
Alloy: A substance with metallic properties,
formed when a metal is combined with other elements such as carbon or other
metals.
Delocalised electrons: Electrons that are not
part confined to a particular location, but are able to move throughout a
structure.
Metallic bonding: The electrostatic attraction between cations and the electrons
that move between them.
Grains: the crystals that form the structure of
metal.
Work hardened: Repeated hammering or bending of
a metal, resulting in a herder, more brittle, metal.
Quenching: Heating a metal then cooling it
rapidly, resulting in a stronger, more brittle metal.
Annealing: Heating a metal then cooling it
slowly, resulting in a softer, less brittle metal.
Tempering: Heating a quenched metal then
cooling it slowly, resulting in a stronger but malleable metal.
Alloying: The process creating an alloy be
combining metals with another element such as carbon or another metal.
Substitutionally alloys: An alloy formed when
metals with similar sized atom's are mixed.
Interstitial alloys: An alloy formed when the
atoms of an alloying element fit (because they are a different size) into the
spaces between the cations of the parent metal.
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