Chapter 1.4 Properties
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Ionic compounds form a
lattice structure
An ionic lattice is a regular arrangement of
metal and non-metal ions
A lattice structure creates compounds with a
high melting point which conduct when molten or in solution.
Lattice structure compounds never conduct when
solid
Ionic compounds dissolve in water very
easily
When ionic compounds are dissolve their ions are
free to move and carry the electrical charge.
Covalent network substance have a
very high melting point and are very hard because of their strong bonds
Covalent molecules such as oxygen and water have
low melting and boiling points
Covalent compounds do not
conduct electricity except water.
EXCEPTION: Graphite is a covalent network that does conduct because
it has delocalised electrons