Chem 115 1nd Edition Lecture 22Outline of Last LectureI. Matter and EnergyII. Heisenberg’s Uncertainty PrincipleIII. Schrodinger Wave EquationIV. Quantum AddressOutline of Current LectureI. Pauli’s Exclusion PrincipleII. Factors Affecting Orbital EnergiesIII. ShieldingIV. Splitting LevelsV. Aufbau PrincipleVI. Exclusion PrincipleCurrent LecturePauli’s Exclusion Principle: no two electrons in the same atom have the same four quantum numbers- Max of two electrons per orbital and must have opposite spinsFactors Affecting Orbital Energies- Nuclear charge- Shielding by other electrons- Higher nuclear charge increases nucleus electron interactions and lowers sublevel energyShielding- Electrons in inner energy levels shield the outer electrons very efficientSplitting Levels- Differing energiesThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Aufbau Principle: electrons are always in lowest energy sublevel availableExclusion Principle: each orbital may contain a max of two
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