CHEM103 Study Guide - Quiz Guide: Work Function, Uncertainty Principle, Matter Wave

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Elements: 57, 72-88 and all previous elements: quizlet. Chapter 7: light is a form of electromagnetic radiation, all electromagnetic waves move at speed of light. Number of waves that pass at point in a given period of time. Number of waves also called number of cycles. Relationship between wavelength and frequency: higher frequency=shorter wavelength. Amplitude and wavelength: different wavelengths different colors, different amplitudes different brightness. When two waves meet in such a way that their crests line up together: destructive interference the crest of one wave meets the trough of another, and the result is a lower total amplitude. Diffraction the process by which a beam of light or other system of waves is spread out because of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced. Einstein"s explanation of the photoelectric effect: light energy delivered in packets (quanta or photons)