Crystalline solids arranged
Orderly
Crystalline solids aka
True solids
Crystalline solids are — range order
long
Crystalline solids Mp
sharp
Crystalline solids
Anisotropic
Different value of same property in different direction.
Anisotropy
Same value of a property in all directions
Isotropy
Crystalline solids break up to give
Sharp edges
Amorphous solids aka
pseudo solids/ supercooled liquids
Amorphous solids range order
short
Amorphous solids packed
in no particular order
Amorphous solids MP
Not sharp
Amorphous solids on breaking gives
rough surface
Amorphous solids examples
Glass, rubber, plastic, wood, quartz glass
true solids example
Fe, Ag, Au, NaCl, KCl, alum, quartz
Molecular solids forces
london forces/dispersion forces/ hydrogen bonds
Molecular non polar solids
Dispersion/ London forces
Molecular polar solids
Dipole dipole interaction
Molecular Hydrogen bonded
h bond
Molecular non polar solids example
CO2, CCl4, I2, Ar
Molecular polar solids examples
Hcl, SO2
Molecular hydrogen bonded eg
h2o
Ionic solids forces
coulombic/ electrostatic forces
Metallic solids forces
metallic bonds