6: Module 6 "Ionic Compounds"

CHEM 1020 Introductory Chemistry · LibreTexts

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    • 6.1: Lewis Symbols for Ionic Compounds
      This section explains the octet rule, emphasizing that atoms strive for eight valence electrons to achieve stability, leading to cation and anion formation. It details examples like Na+ and Cl− ions, and reactions forming compounds like NaCl and MgO. Trends in ionic charge across periodic groups are discussed, alongside the importance of maintaining charge balance in ionic compounds.
    • 6.2: Formulas and Names of Ionic Compounds
      This section discusses the nomenclature and formulation of ionic compounds, emphasizing the naming conventions for cations and anions. Cations are named with "ion" added, while anions use the stem with "-ide." Two systems for cation naming are discussed: the Stock system and the older common system. Formulating involves recognizing ionic charges and using methods like the crisscross technique.
    • 6.3: Polyatomic Ions
      This section covers polyatomic ions, emphasizing their identification, formula writing, and naming of ionic compounds. It stresses the necessity of balancing charges, includes examples and practical methods, and provides exercises for students. The content highlights that the rules for polyatomic ions are akin to those for monatomic ions.

    6: Module 6 "Ionic Compounds" is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.