Intermolecular Forces

ionic solid

a lattice of positive and negative ions help together by strong electrostatic attraction. Like a repeating crystal strucutre of ions (cations and anions). Very high melting points, metal & nonmetal (NaCl, MgO, CaF2)

metallic solid

closely packed metal atoms with a delocalized sea of electrons. Like positive metal ions surrounded by freely moving electrons. Conducts electricity & heat, shiny, malleable, ductile. Pure metal element (Au, Fe, Cu, Al)

Network covalent solid

Atoms connected by strong covalent bonds in giant network. Like one massive molecule extending throught the solid. Extremely high melting points, very hard, nonmetals bonded in extended networkds. Diamonds, Silicon, Carbon only stuff

molecular solid

individual molecules held together by weak intermolecular forces. Like discrete molecules packed together, not bonded to each other covalently. Low melting points, small covalent molecules (Co2, CH4, I2)

polymeric solids

macromolecules held together with strong polar covalent bonds. Made up of very large molecules. Atoms within each chain are connected by strong covalent bonds. The chains are often held near each other by polar IMFs. Made of long chains