09 - 9/24/09 Chapter 14 Demonstration: Neodymium magnets...

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9/24/09 Chapter 14 Demonstration: Neodymium magnets (element 60) Neodymium embedded in ceramic plates Graphite reactivity with neodymium magnet allows graphite piece to levitate above neodymium magnets Depending on the direction of the electrons orbiting the nucleus the Lorentz force either slows down angular velocity or increases electron velocity in the outer valence orbitals Because of the Lorentz force net amount of spin induced Diamagnetic materials have no unpaired electrons when placed inside a magnetic field, an induced magnetism is created due to the Lorentz force because of the magnetic flux Molecular Orbit Theory : Wave nature of the electron (recall waves can be added/subtracted) Consider bringing 2 H atoms at an infinite distance apart No electronic interaction Schroedinger : provided a bonding description that involved a wave function (pitchfork) and the likelihood of find that electron in some volume of space, related to (pitchfork) 2 2 approaches
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This note was uploaded on 09/19/2011 for the course CHEM 43L taught by Professor Therien during the Fall '09 term at Duke.

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09 - 9/24/09 Chapter 14 Demonstration: Neodymium magnets...

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