Intermolecular Forces

Intermolecular Forces

1. Ion-Ion Forces

   • Very strong
   • High melting point
   • Increasing charges and decreasing ionic size

2. Hydrogen-Bonding Forces

   • Strong interection
   • Hydrogens bonded to N, F, or O tend to interact with neighboring molecules.

3. Dipole-Dipole Forces

   • Based on Polarity
     • More polar=stronger forces

4. London-Dispersion Forces

   • Based on Instantaneous Dipole in any molecule
     • Causes induced dipole in neighboring molecules
     • Weak/Short range
     • Larger e- clouds are easier to distort
       • Larger atomic radius