'Orbital energies' diaporamas de présentation

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Discharge Lamps

Discharge Lamps. Chapter 14 part2 1020C. Introductory Question. A fluorescent lamp tube is coated with a white powder on its inside surface. If that powder were not there, the lamp would appear brighter dimmer

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Chapter 5 Molecular Orbital Theory

Chapter 5 Molecular Orbital Theory. Interactions of two s orbitals: H 2. Look at combinations of 1s wavefunctions :. Interactions of two s orbitals: H 2. Interactions of two p orbitals. Interactions of two p orbitals. Interactions of two p orbitals.

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Lecture 18: The Hydrogen Atom

Lecture 18: The Hydrogen Atom. Reading: Zumdahl 12.7-12.9 Outline The wavefunction for the H atom Quantum numbers and nomenclature Orbital shapes and energies. H-atom wavefunctions.

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Lecture 13: Diatomic orbitals

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ELECTRONIC CONFIGURATION PERIODICITY OF ELEMENTS

ELECTRONIC CONFIGURATION PERIODICITY OF ELEMENTS. PERIODIC TABLE. Most powerful tool in the study of chemistry. Order the elements by Z number. Used to predict undiscovered elements and their properties. (Recall recent discoveries of atoms with Z = 113, 115)

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Colour and the d block

Colour and the d block. UV / Vis frequencies are have photons with energies of the sort of values needed to promote electrons from their ground state energy level to a higher level. A typical substance will require UV photons so does not absorb Visible light. Most substances are colourless. .

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Quantum Numbers

Quantum Numbers. Addresses for electrons . Principal Quantum Number (n). Determines the size of an orbital (bigger n = bigger orbitals) Largely determines the energy of the orbital (bigger n = higher energy)

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