1.3 Definitions

Ionic Lattice

A three-dimensional structure of oppositely charged ions held together by ionic bonds

Metallic Lattice

A three-dimensional structure of positive ions and delocalised electrons held together by metallic bonds

Giant Covalent structure

A three dimensional structure of atoms that are joined together by covalent bonds

Allotropes

Different forms of the same element in the same physical state

Alloy

A mixture of two or more elements at least one of which is a metal and then resulting mixture has metallic properties

Van Der Waal’s Forces

Weak forces of attraction between simple covalent molecules

Aqueous solution

A solution in which the solvent is water