Zusammenfassung der Ressource
Molecular Orbitals and Hybridization
- Although the Lewis representation is a useful model to represent covalent bonds it does make the
false assumption that all the valence electrons are the same
- Sigma bonds
- a (sigma) bond is formed when two atomic orbitals on different atoms overlap along a line drawn
through the two nuclei.
- This occurs when two s orbitals overlap, an s orbital overlaps with a p orbital, or when two p orbitals
overlap 'head on'.
- Pi bonds
- Pi bond is formed when two p orbitals overlap 'sideways on'
- the overlap now occurs above and below the line drawn through the two nuclei
- A pi bond is made up of two regions of electron density.
- Hybridization