CHEM 1000 Chapter Notes - Chapter 8: Niels Bohr, Louis De Broglie, Absorption Spectroscopy
26 Oct 2016
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Electromagnetic radiation is a type of energy transmission in form of a wave. The wave of electromagnetic radiation is characterized by an amplitude, the maximum height of waves crests and maximum depth of wave troughs; a wavelength, the distance between wave crests & frequency, which signifies how often fluctuations occur. Frequency is measured in hertz, hz (cycles per second). Product of wavelength & frequency is equal to the speed of light (c). The wave character of electromagnetic radiation means that waves can be dispersed into individual components of different wavelengths, a diffraction patter by striking a closely groves surface. A rainbow results from dispersion of all wavelength components of visible light by a prism or raindrops; it"s a(cid:374) e(cid:454)a(cid:373)ple of a (cid:272)o(cid:374)ti(cid:374)uous spe(cid:272)t(cid:396)u(cid:373). The spe(cid:272)t(cid:396)a p(cid:396)odu(cid:272)ed (cid:271)(cid:455) light emitted from excited atoms & ions is called atomic spectra or line spectra, because only certain frequencies are observed.
