1Chemistry 2AChemistry 2A-c w2009 c w2009 (Ch8(Ch8-1)971)97Electrons and AtomsElectrons and AtomsAt the end of the 19thcentury:Classical Physics, such as Newtonian Mechanics, cannot explain phenomena at the atomic and molecular levels – called for the development of Quantum TheoryI. Electromagnetic Radiation (plane polarized)wavelengthE fieldH field
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2Light is a form of electromagnetic radiationOscillating electric and magnetic fieldsperpendicular to direction of travelE field perpendicular to H fieldChemistry 2AChemistry 2A-c w2009 c w2009 (Ch8(Ch8-2)982)98)(2sintxEEmνλπ−=)(2sintxHHmνλπ−=