Chem1 Virtual Textbook - Polar and nonpolar bonds
Excellent discussion of the role of electronegativity difference in determining the character of a chemical bond.
Purdue University - ElectronegativityDefines electronegativity and discusses the use of electronegativity difference to identify identify ionic, covalent, and polar covalent compounds.
HyperPhysics - Polar Covalent BondsTopic Resources
16 questions
tutorial chapter
figures for classroom presentation