I.Bonding A.What is a chemical bond? Why study chemical bonds? B.Types of Chemical Bonds 1.Elements of Largely Different IE a. Ionic Bonds (electrons transferred)

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Presentation transcript:

I.Bonding A.What is a chemical bond? Why study chemical bonds? B.Types of Chemical Bonds 1.Elements of Largely Different IE a. Ionic Bonds (electrons transferred) 2. Elements of Similar IE b. Covalent Bonds (electrons shared) Chemical Bonding

Bonding in H 2 + 1e -

Bonding in NaCl + 10 e - 17 e - 18 e - 9 e - + -

ionic covalent Ionic Character and Electronegativity

Dipole Moments

Trends in Electronegativity

Recognizing Polar Bonds H-H Cl-Cl H-Cl H-F C-O C-F O-O

Recognizing Ionic vs Covalent Compounds Ionic Compounds – Form from metals and nonmetals Covalent Compounds – Form from nonmetals CO 2 N2O4N2O4 CaCl 2 NaF MgO C6H6C6H6 HCl

Net Dipole Moment

Ionic Solid