Electronegativity and Bond Polarity Greater AEN means greater polarity H 2.2 Li Be B C N O F 1.0 1.6 1.8 2.5 3.0 3.4 4.0 Na Mg Al Si P S CI 0.9 3 1.6 1.9 2.2 2.6 3.2 K Br 0.8 3.0 I => 2.7 11Chapter 1 11 Electronegativity and Bond Polarity Greater EN means greater polarity =>