Journal Entry:

Why do you think noble gases don't have electronegativity values?  Would they attract to a charged wand? Would they smell?

Learning Intentions

• We will learn how to use the electronegativity scale to compare atoms and compare/calculate the polarity of different bonds.

• We will learn how to use the electronegativity scale to predict bond dipoles and bond types.

• We will learn how to describe the continuum of nonpolar, polar and ionic bonding in terms of electronegativity.

• We will assess a molecule for symmetry and determine if it is likely to be polar.

• We will use electronegativity values to locate the partial negative and partial positive portions of a molecule.

• We will explain the connection between polarity and smell.

Closing Task:

You can determine the relative polarity of a compound and determine what type of bond will form between two atoms.

You can determine if a molecule is polar and if it will have a smell.

Content Standards being covered: