Lesson 7: Bond Polarity

Lesson Objective: Determine the degree of polarity in a bond based upon the electronegativity difference between two bonded atoms.

Recall:  Electronegativity is a measure of an atoms ________ for bonding electrons to themselves

attraction

The higher an atom's electronegativity, the greater its…

attraction for electrons.

The greater the electronegativity, the greater the _____ bond

polar

Nonpolar convalent Bond 

bonding electrons shared equally between 2 atoms. No charges atoms

Polar Covalent Bonds

bonding electrons shared un

Ionic Bonds

Complete transfer of one or more valence electrons

Pure (nonpolar) Covalent Bondson:

electrons shared equally

Polar covalent bond

Electrons shared unqually