CHEM 135 Chapter Notes - Chapter 10: Molecular Orbital Theory, Valence Bond Theory, Molecular Geometry
22 Nov 2018
School
Department
Course
Professor
Document Summary
Chapter 10: chemical bonding 2: molecular shapes, valence bond theory, and molecular. Taste and caloric value are independent properties of food. Vsepr: valence shell electron pair repulsion; model that accounts for molecular shape, used in conjunction w/ lewis. Valence bond theory and molecular orbital theory: predict/account for molecular shape and other properties. 10. 2 vsepr theory: the five basic shapes repel each other. Vsepr theory: based on idea that electron groups (lone pairs, multiple bonds, single e - ) Preferred geometry: electron groups have max separation/min energy. Molecules w/ 1 interior atom: geometry depends on # e - groups around central atom, how many of the e - groups are bonding vs lone pairs. 5 main shapes for central atoms w/ no lone pairs: Max separation would be a straight line (180 o ) # groups = # bonds on central atom. 3 e - groups = 120 o bond angles in a plane.
