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CH7_Nature_of_Light_Study_Guide%281%29

# CH7_Nature_of_Light_Study_Guide%281%29 - Name CH101 The...

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Unformatted text preview: Name: ___________________________________ CH101 The Nature of Light – Study Guide sections 7.2, 7.3 and 7.4 in the textbook The Nature of Light (section 7.2) The wavelength, λ, is ____________________________________________________________. The amplitude is _________________________________________________________________. The frequency, ν, is the _______________________________that pass a point in a _________________________. frequency units are hertz, (Hz) or cycles/s = s‐1 1 Hz = 1 s‐1 The wavelength and frequency of a wave are related by the following equation: ν (s ‐1 c () m s ) = λ (m) Where c is the speed of light in a vacuum = 3.00 x 108 m/s Einstein proposed that the light energy was delivered to the atoms in packets, called ___________________ The energy of one _________________ can be found using the equation: E = hν = h•c λ Where h is Planck’s Constant = 6.626 x 10‐34 J∙s The energy of a photon of light is directly proportional to ______________________ and inversely proportional to __________________________________. Complete the following table: Wavelength (long or short) Frequency (high or low) Energy (high or low) long short All the wavelengths of light are collectively called the ___________________________ spectrum. Watch video tutorial on Blackboard Atomic Spectroscopy and the Bohr Model (section 7.3) When atoms or molecules absorb_________________, it is often released as _____________________. An emission spectrum is non‐continuous and can be used _____________________________________. According to Bohr’s Model the electrons travel in ____________________ with a ____________distance from the nucleus Electrons emit radiation when they “jump” from an orbit with higher energy down to an orbit with a ____________(higher or lower) energy. 2 The Wave/Particle Nature of Matter (section 7.4) Complimentary Properties are __________________________________________________________. Uncertainty Principle: the more accurately you know the _______________of a small particle, like an electron, the less you know about its ___________________. End of Chapter Practice Problems Tro First Edition: #39, 41, 45 Tro Second Edition: #39, 41, 45 answers are located in Appendix III of the textbook Take the Quiz on Blackboard 3 ...
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