Classify crystalline solids with explanations of their examples and properties.

(N/A) Crystalline solids are classified into four categories based on the nature of intermolecular forces or the bonds holding the constituent particles together:
$1$. Molecular Solids: These contain molecules as constituent particles. Examples include $I_2$,$S_8$,$P_4$,and $H_2O$ (ice).
$2$. Ionic Solids: These consist of ions as constituent particles held by strong electrostatic forces. Examples include $NaCl$,$ZnS$,and $MgO$.
$3$. Metallic Solids: These consist of positive metal ions surrounded by a sea of delocalized electrons. Examples include $Fe$,$Cu$,and $Ag$.
$4$. Covalent or Network Solids: These consist of atoms linked by a continuous network of covalent bonds. Examples include $SiO_2$ (quartz),$SiC$,and diamond.