Unit 3 - Bonding

Bonding Objectives

2.1 Types of Chemical Bonds - SAP-3.A - Explain the relationship between the type of bonding and the properties of the elements participating in the bond.

2.2 Intramolecular Force & Potential Energy - SAP-3.B – Represent the relationship between potential energy and distance between atoms, based on factors that influence the interaction strength.

2.3 Structure of Ionic Solids - SAP-3.C – Represent an ionic solid with a particulate model that is consistent with Coulomb’s law and the properties of the constituent ions.

2.4 Structure of Metals & Alloys - SAP-3.D – Represent a metallic solid and/or alloy using a model to show essential characteristics of the structure and interactions present in the substance.

2.5 Lewis Diagrams - SAP-4.A – Represent a molecule with a Lewis diagram.

2.6 Resonance & Formal Charge - SAP-4.B – Represent a molecule with a Lewis diagram that accounts for resonance between equivalent structures or that uses formal charge to select between nonequivalent structures.

2.7 VSEPR & Bond Hybridization - SAP-4.C – Based on the relationship between Lewis diagrams, VSEPR theory, bond orders, and bond polarities: a) explain structural properties of molecules; b) explain electron properties of molecules.

Bonding Big Ideas

Big Idea 2: Structure and Properties (SAP)

• Enduring Understanding SAP-3: Atoms or ions bond due to interactions between them, forming molecules.

• Enduring Understanding SAP-4: Molecular compounds are arranged based on Lewis diagrams and Valence Shell Electron Pair Repulsion (VSEPR) theory.