BIOL101 Lecture Notes - Lecture 4: Benzene, Molecular Geometry, London Dispersion Force
14 Oct 2017
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Reading: petrucci et al chapters 10 and 11 (sections 11-1 to 11-4, 11-6, 12-1) Chapter 10 questions 3, 4, 11, 17, 18, 21, 22b, 59, To look at bonding and possible shapes of molecules: we will mainly do this through lewis structures. To look at ionic and covalent bonds. Use valence shell electronic structure to predict shapes of molecules. The driving force for the production of chemical bonds is the need for an atom to complete a valence shell (usually 8 electrons) This is a way of representing the valence electrons in an element. These are the combination of lewis symbols that represents the sharing or transfer of electrons in a molecule. Normally they are in crystals where one anion (negative) is attached to several cations (positive) and vice versa. Electrical neutrality means the total number of each ion is the same. Note that there are 6 electrons around the cl that are not involved in bonding.
