CH-1010 Chapter Notes - Chapter 3: Uncertainty Principle, Electromagnetic Spectrum, Fraunhofer Lines

• School: Clemson University
• Department: Chemistry
• Course: CH-1010
• Professor: Mycia Cox

Document Summary

Electromagnetic radiation: any form of radiant energy in the electromagnetic spectrum. Electromagnetic spectrum: a continuous range of radiant energy that includes gamma rays, x-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Wavelength: the distance from crest to crest or trough to trough on a wave. Frequency (v): the number of crests of a wave that pass a stationary point of reference per second. Hertz (hz): the si unit of frequency with units of reciprocal seconds: 1. Fraunhofer lines: a set of dark lines in the otherwise continuous solar spectrum. Atomic emission spectra: characteristic patterns of bright lines produced when atoms are vaporized in high-temperature flames or electrical discharges. Atomic absorption spectra: characteristic patterns of dark lines produced when an external source of radiation passes through free, gaseous atoms. Quantum: (plural quanta) the smallest discrete quantity of a particular form of energy. Planck constant (h): the proportionality constant between the energy and frequency of electromagnetic radiation expressed in e=hv;