CHEM 130 Chapter Notes - Chapter 2.1-2.4: Emission Spectrum, Bohr Model, Continuous Spectrum

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13 Oct 2016
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Em radiation = one of the ways that e travels through space. Waves have 3 primary characteristics: wavelength, frequency, speed. Wavelength (cid:523) (cid:524) distance btw 2 consecutive peaks/troughs in wave. Frequency (v) number of waves (cycles) per second that pass a given point in space. = meters, v = cycles per second, c = speed of light (cid:523)(cid:884). 99(cid:889)9*(cid:883)(cid:882)8 m/s) * =c v = hertz (1 cycle per second) 2-2: the nature of matter atom quantum. V = frequency of em radiation: planck"s constant energy can be gained or lost only in whole number multiples of the quantity hv (h = constant) = . E can occur only in discrete units of size hv each individual one of these energy (cid:498)packets(cid:499) = Quantum (of energy) minimum amount of energy that can be lost/gained by an: e = hv energy of a quantum of radiation = planck"s constant * frequency, planck"s constant = (cid:888). (cid:888)(cid:884)(cid:888) * (cid:883)(cid:882)^-34 js.

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