Lecture_13_Electrons - LECTURE NOTES LECTURE 13...

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L E C T U R E N O T E S LECTURE 13 Wave-mechanical Model GENERAL CHEMISTRY Fall 2009
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11.2 Energy and Light Properties of Light Light, which exists in tiny "packets" called  photons , exhibits properties of both  waves  and  particles . This  property is referred to as the  wave–particle duality . A.    Electromagnetic Radiation 1. Many types of EM waves a. visible light  b. x-rays c. ultraviolet light  d. infrared light  e. radio waves 2.  EM radiation are  forms of energy which move through space as waves a. Move at speed of light  (1). 3.00 x 10 8  m/s  b. Speed is equal to the frequency times the wavelength      c =  νλ (1).  Frequency  is  the number of waves passing a given point in one second designated by the Greek letter nu ( ν ). (2).  Wavelength  (lambda,  λ ) is  the distance between peaks of adjacent waves IMPORTANT: Different wavelengths of EM carry different amounts of energy. B. Light and Energy  1.   Radiant energy is transferred in units (or quanta) of energy called  photons a.    A photon is  a particle of energy having a rest mass of zero and carrying a quantum   of energy. b.   A 
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.

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Lecture_13_Electrons - LECTURE NOTES LECTURE 13...

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