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Unformatted text preview: ATOMIC STRUCTURE AND PERIODICITY Zumdahl Chapter 7 Two areas of Physics y Classical Mechanics Newtons laws works for big things y Wave/Quantum Mechanics applies to electrical and magnetic phenomena Properties of Waves y Wavelength ( ) the distance between the crests or troughs of waves y Frequency ( ) the number of times a crest passes a certain point in a second y Velocity (v) the speed of the peak in space y Amplitude the height from the midpoint to the crest y Energy of a wave, definition later The Nature of Waves y As the wavelength decreases the frequency increases The Relationship Between and y If crests go by in one second, then the distance traveled in one second (speed) is velocity, which is equal to the frequency ( ) times the wavelength ( ). y For light velocity = c = 3.00 x 10 8 m/s Determining Frequency y The wavelength of light emitted by a HeNe laser is 632.8 nm. What is the frequency of this radiation? The frequency of a particular color of light is 8.57 x The frequency of a particular color of light is 8....
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This note was uploaded on 12/06/2009 for the course CHEM 105A taught by Professor Bau during the Fall '04 term at USC.
 Fall '04
 Bau
 Chemistry, Atom, pH

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