Review and Introduction to Organic Chemistry 1. Where are electrons? Atomic structure Atomic number Atomic weight Energy levels Electron configurations.

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Bonding and IsomerismReview and Introduction to Organic Chemistry1Where are electrons?Atomic structureAtomic numberAtomic weightEnergy levelsElectron configurationsEnergy LevelsSublevelsOrbitalsLewis structures (electron dot structures)2Ionic CompoundsIonic bondsCationAnionElectropositiveElectronegative3Covalent BondingSharingMoleculesBond energy

Bond lengthH2 is 0.74

4Glorious Carbon and the Covalent BondLewis structureFour bonds5Carbon-carbon Single Bonds6Carbon-carbon Single BondsEqual sharingBE = 368 kJBL = 1.54

Radicalmolecular fragment w/odd number of unshared electrons7CatenationAbility of element to form chains due to bonding between like atomsDraw structure of propane, C3H88

Electronegativity Values9C-H BondEN difference is 0.4 (some sources say Hs EN is 2.2)Considered nonpolar10Polar Covalent BondsUnequal sharingDifferences in EN >1.0 and