CHY 102 Lecture Notes - Lecture 3: Trigonal Planar Molecular Geometry, Pauli Exclusion Principle, Orbital Hybridisation
11 Sep 2016
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Document Summary
Auf bau process: the theory that an atom is built up by the addition of electrons, which fill orbitals starting at the lowest available energy orbital before filling higher energy orbitals (ex. Covalent bond: a chemical bond in which atoms share the bonding electrons. Electron probability density: the probability of finding an electron at a given location derived from wave functions and used to determine the shapes of orbitals. Electron-pair repulsion: the repulsive force that occurs between electron pairs, causing them to be positioned as far apart as possible in a molecule. Ground state: the lowest state for an atom. Hund"s rule: a rule stating that in a particular set of orbitals of the same energy, the lowest energy configuration for an atom is the one with the maximum number of unpaired electrons allowed by the. Pauli exclusion principle; unpaired electrons represented as having parallel spins.
