MSE 110 - U of AAtom-Atom InteractionsBONDING•We have then developed simpler models that describe the types or extremes in bonding that have been observed: ionic, covalent, metallic.•Recognize that the actual bonding in a particular molecule may lie somewhere between these extremes or types. •The orbitals in molecules and collections of atoms are still described by Schrodinger’s equation. The potential, V, must be modified to reflect several or many nuclei being present. The solutions are now orbitalsthat extend over the molecule, each orbital can still only hold two electrons. The actual solutions are very complex.0)(82222=−+∂∂ψπψVEhmx•When atoms interact with each other (react) the atoms and their electrons rearrange themselves to achieve the lowest energy state. •Lowest energy state maximizes the electrostatic interaction between the electrons and all the protonic cores (atom nucleis), the electrons try to get as close to the cores (on average) as possible.
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