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CHEM 121 Studioby Learn4Less · UBC CHEM 121

Module 1 · on the midterm and final

Chemical Bonding & Lewis Structures

Count valence electrons, draw Lewis structures, assign formal charges, find resonance forms and oxidation states, and classify bonds by electronegativity.

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Topics

  1. 1.1 · Lewis structure builderDrawing Lewis structuresA step-by-step method for placing every valence electron.6 concept cards
  2. 1.2Formal charge and resonanceHow to pick the best structure and when one drawing is not enough.7 concept cards
  3. 1.3Exceptions to the octet ruleElectron-deficient atoms, expanded octets and radicals.7 concept cards
  4. 1.4Oxidation statesElectron bookkeeping that assumes every bond is ionic.6 concept cards
  5. 1.5Electronegativity and bond polarityFrom nonpolar covalent to ionic on one scale.6 concept cards