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Ch.13 Lewis, VESPR

Localized Electron Model (LE) Electrons are localized on an atom or bond
Formal Charge # val. e - # bonds - # lone e
Resonance more than 1 valid lewis structure for molecule; lewis structure is the average of the resonance structures Compensates for defective LE model. Electrons are delocalized and move around the entire molecule
Exceptions to the octet rule B and Be electron deficient Period 3 and heavier atoms can exceed octet (3d orbitals)
VSPER -predicts geometries of molecules formed form nonmetals -designed to minimize electron repulsion
Created by: Agenfi