10-08-08%20-%20Lecture%205%20-%20Chapter%201

Lectu - Quantum or Wave Mechanics ofelectronsinatoms FUNCTIONS ErwinSchrdinger 18871961 stateofane Qua

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Schrödinger applied idea of e - behaving as a wave to the problem of electrons in atoms. He developed the WAVE EQUATION Solution gives set of math expressions called WAVE FUNCTIONS, Ψ Each describes an allowed energy state of an e - Quantization introduced naturally. Erwin Schrödinger 1887-1961 Quantum or Wave Mechanics
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Born Interpretation Probability density = Ψ 2
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Particle in a box increase the size of the box
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Where is the particle?
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Spectrum of Spectrum of Excited Hydrogen Gas Excited Hydrogen Gas The different lines in the spectrum are different excited H atoms releasing energy to return to the ground state.
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Energy When an atom is excited the electrons can be excited to different energy levels. The electrons transition back to the ground energy level by releasing energy as photons . ∆E= hv
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Visible lines in H atom spectrum are called the BALMER series. High E Short λ High ν Low E Long λ Low ν Line Emission Spectra Line Emission Spectra of Excited Hydrogen Atoms of Excited Hydrogen Atoms
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BUT…… Excited atoms emit light of only certain wavelengths The wavelengths of emitted light depend on the element.
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Line Spectra of Other Elements Line Spectra of Other Elements
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Atomic Spectra and Bohr Atomic Spectra and Bohr 1. Any orbit should be possible and so is any energy. 2. But a charged particle moving in an electric field should emit energy. End result should be destruction! + Electron orbit One view of atomic structure in early 20th century was that an electron (e - ) traveled about the nucleus in an orbit.
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Atomic Spectra and Bohr Atomic Spectra and Bohr Bohr said classical view is wrong. Need a new theory — now called
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This note was uploaded on 01/04/2009 for the course CHEM 234234234 taught by Professor Johnson during the Fall '08 term at UCSD.

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Lectu - Quantum or Wave Mechanics ofelectronsinatoms FUNCTIONS ErwinSchrdinger 18871961 stateofane Qua

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