Page 1: Bonding Types and Alloys
This page introduces the fundamental concepts of chemical bonding in AP Chemistry Unit 2: molecular and ionic compound structure and properties. It covers ionic bonds, metallic bonds, and alloys, emphasizing their characteristics and formation processes.
Ionic bonds are discussed in terms of their properties, including high melting and boiling points, and their conductivity in different states. The concept of lattice energy is introduced, explaining how bond charge and ion size affect bond strength.
Metallic bonds are explored, with a focus on the formation of alloys. Two types of alloys are described: interstitial and substitutional alloys, highlighting the differences in atomic radii that lead to their formation.
Definition: Lattice energy is the energy required to separate ions in an ionic solid, with greater bond charge and smaller ions resulting in stronger attractions.
Example: In an interstitial alloy, metal atoms with vastly different radii combine, while substitutional alloys form between atoms of similar radii.
Highlight: Understanding the properties of ionic compounds, such as their high melting points and conductivity in liquid form, is crucial for AP Chemistry Unit 2 Test pdf questions.
