Structure 1. Models of the particulate nature of matter

1.1 Introduction to the particulate nature of matter

1.2 The nuclear atom

1.3 Electron configurations

1.4 The mole

1.5 Ideal gases

Structure 2. Models of bonding and structure

2.1 The ionic model

2.2 The covalent model

2.2.1—Covalent bonding

2.2.2—Bond types and strength

2.2.3—Coordination bonds

2.2.4—VSEPR model

2.2.5—Bond polarity

2.2.6—Molecular polarity

2.2.7—Covalent network structures

2.2.8—Intermolecular forces (IMF)

2.2.9—IMF strength and properties

2.2.10—Chromatography

2.3 The metallic model

2.4 From models to materials

Structure 3. Classification of matter

3.1 The periodic table

3.2 Functional groups: Organic compounds

Reactivity 1. What drives chemical reactions?

1.1 Measuring enthalpy changes

1.2 Energy cycles

1.3 Energy from fuels

Reactivity 2. How much, how fast and how far?

2.1 Amount of chemical change

2.2 Rate of chemical change

2.3 Extent of chemical change

Reactivity 3. What are the mechanisms of chemical change?

3.1 Proton transfer reactions

3.2 Electron transfer reactions

3.3 Electron sharing reactions (Radicals)

3.4 Electron-pair sharing reactions

IB Chemistry HL 2.2.15 (HL)—Sigma (σ) and pi (π) bonds Question Bank

• σ bonds: head-on orbital combination, electron density along bond axis

• π bonds: lateral p-orbital combination, electron density on opposite sides

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