Unit 2: Molecular and Ionic Compound Structure and Properties in AP Chemistry focuses on the composition and behavior of chemical compounds. Key topics include molecular geometry, polarity, intermolecular forces, lattice structures, and bonding types (ionic, covalent, and metallic). Students analyze how the arrangement of atoms and ions impacts properties like boiling points, solubility, and conductivity. This unit provides a deeper understanding of the structure-property relationships essential for advanced chemistry topics.