CHEM 135 Chapter Notes - Chapter 9: Electron Configuration, Ionic Bonding, Lattice Energy
2 Oct 2018
School
Department
Course
Professor
Document Summary
Chapter 9: chemical bonding i: the lewis model. Lewis model - use dots for valence electrons. Lewis electron dot structures - represent molecules. Chemical bonds form bc they lower the pe btwn charged particles that make atoms. Ionic bond: transfer electrons, btwn metal cation and nonmetalanion (opp charge ions attract) Covalent bond: nonmetal + nonmetal, shared electrons. Lewis symbol: valence electrons = dots around chemical symbol of element. Cant double up until each side has at least one. Chemical bond: sharing or transfer of electrons to attain stable electron configurations for stable atoms. Octet rule: stable usually = 8 e- in outer shell. 9. 4: ionic bonding: lewis symbols and lattice energies. Lewis = better for covalent modeling but can be used for ionic. The charges on the ions depends on the elements/ions formed. Lattice energy: the rest of the story:
