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August 19, 2010 10:40 9in x 6in b985-ch12 Elementary Physical Chemistry
126 Elementary Physical Chemistry
There are four different kinds of solids:
1. Molecular Solid. This is a solid held together by intermolecular forces.
Examples are solid Ne, solid H 2O, and solid CO 2
2. Metallic Solid. This is a solid composed of a positive charged core of
atoms, held together by a “sea” of delocalized electrons. Examples are
iron, copper, and silver.
3. Ionic Solid. This is a solid that consists of cations and anions held
together by the attraction of opposite charges (ionic bonds). Examples
are CsCl and NaCl.
4. Covalent Solid. This is a solid held together by a large network or chain
of covalent bonds. Examples are diamond and graphite sheets,