CHEM 111 Chapter Notes - Chapter 10: Pauli Exclusion Principle, Valence Electron, Louis De Broglie
4 Mar 2016
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Document Summary
Wavelength- the distance between consecuive peaks and troughs in a wave; symbolized by the. Frequency- a measurement of the number of waves that pass a paricular point per second. Speed- a measurement of how fast a wave travels though space. Photons- a iny packet of energy that streams with others of its kind to produce a beam of lighr. Atomic theory has changed over the past 200 years: early greek ideas, dalton"s model, thomson"s model, rutherford"s model, modern atomic theory. Basic wave characterisics include: wavelength ( , frequency (v, speed ( ) Light can also be considered to be composed of energy packets called photons, which behave like paricles. Line spectrum- colored lines generated when light emited by a gas is passed through a spectroscope. Each element possesses a unique set of line spectra. From the theory proposed by physicist max planck that energy is emited in energy quanta rather than a coninuous stream.
