electrons. All electrons are identical. The use of dots and crosses is an aid to keep of the origin of the electrons. Lewis Diagrams and Structural Formulas Bonding representation is often simplified by omitting the lone electron pairs and by substituting a dash for each bonding pair of electrons. The resulting representation is called a (The structural formula does structural formula. not generally represent the shape of the molecule, it merely represents the bonding that occurs.) Table G2 Lewis Diagram and Structural Formulas - Single Bonds 6 G14 CHEMICAL BONDING G7 LEWIS’ MOLECULAR THEORY Lewis’ Molecular Theory Complete the following table. Use Lewis' Molecular Theory to the molecular formulas for Questions 5-8, explain and then to the simplest molecular formula formed by the atoms listed in Questions 9-14. In Questions 9-14 predict the molecular formula is the molecule formed by the least number of atoms. simplest Molecular Formula or Lewis Diagram of Confirmed or Predicted Structural Formula Atoms Combined Molecule Molecular Formula 5. H2O(l) 6. HCl(g) 7. Cl2(g) 8. C2H6(g) 9. H atoms 10. Cl atoms 11. C & H atoms 12. N & I atoms 13. O & F atoms 14. P & Cl atoms 7
electrons. All electrons are identical. The use of dots and crosses is an aid to keep of the origin of the electrons. Lewis Diagrams and Structural Formulas Bonding representation is often simplified by omitting the lone electron pairs and by substituting a dash for each bonding pair of electrons. The resulting representation is called a structural formula. (The structural formula does not generally represent the shape of the molecule, it merely represents the bonding that occurs.) Table G2 Lewis Diagram and Structural Formulas - Single Bonds 6 G14 CHEMICAL BONDING G7 LEWIS’ MOLECULAR THEORY Lewis’ Molecular Theory Complete the following table. Use Lewis' Molecular Theory to explain the molecular formulas for Questions 5-8, and then to predict the simplest molecular formula formed by the atoms listed in Questions 9-14. In Questions 9-14 the simplest molecular formula is the molecule formed by the least number of atoms. Molecular Formula or Atoms Combined Lewis Diagram of Molecule Structural Formula Confirmed or Predicted Molecular Formula 5. H2O(l) 6. HCl(g) 7. Cl2(g) 8. C2H6(g) 9. H atoms 10. Cl atoms 11. C & H atoms 12. N & I atoms 13. O & F atoms 14. P & Cl atoms 7
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