Covalent solids
Molecular Solids
Solid composed of molecules as constituent particles . These solids can further be categorized into following types :
o Non polar Molecular Solids : o They are composed of either atom . o H2 , Cl2 and I2 . are some of the typical example .
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In non-polar Molecular solids the comprised atoms or molecules are held together by weak dispersion forces or London forces .
o They are soft and non-conductors of electricity .
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They have low melting points and usually exist in liquid or gaseous state at room temperature and pressure .