chapter 7-6 slides per page - Topics The Wave Nature of...

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Topics • The Wave Nature of Light • Quantized Energy and Photons • Line Spectra and the Bohr Model • The Wave Behavior of Matter • Quantum Mechanics • Quantum Numbers and Atomic Orbitals Important Concepts and Definitions Light is an electromagnetic radiation. It travels through space as electromagnetic waves Wave is a repeating oscillation of matter(ocean waves) or of a physical field: oscillating electric and magnetic fields form electromagnetic waves. Common forms of the electromagnetic waves: visible light, x-rays, radio waves, microwaves, UV, IR They differ in wavelength, frequency, and energy Wave Parameters Wavelength, λ Frequency, ν Units: s -1 = 1 Hz (Hertz) Amplitude Node Speed of wave V = λ x ν Speed of light c = λ x ν = 3x10 8 m/s (in vacuum) The Electromagnetic Spectrum . Planck’s Theory • Atoms of a solid oscillate (vibrate) with a definite frequency, ν . • An atom could have only certain energies of vibration h- (Planck’s constant) = 6.63 x 10 -34 J . s
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This note was uploaded on 05/04/2010 for the course CHEMISTRY 130 taught by Professor Jadwigasipowska during the Winter '10 term at University of Michigan.

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chapter 7-6 slides per page - Topics The Wave Nature of...

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