Hydrogen Emission And Absorption Spectra
by Carlos Clarivan
Title
Hydrogen Emission And Absorption Spectra
Artist
Carlos Clarivan
Medium
Photograph - Photograph
Description
Hydrogen emission and absorption spectra. When electrons in an element become excited (by heating), they enter higher energy orbits. When they return to their ground state they release the extra energy as light radiation at a specific wavelength. The wavelengths emitted by an element are characteristic of that element. A matching absorption spectrum occurs when light passes through a material and is absorbed by its atoms. The 4 lines of the visible hydrogen spectrum (the Balmer series) correspond to wavelengths of 410.2, 434.0, 486.1 and 656.3 nanometres (nm). For this diagram with labelled lines, see C025/8082.
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July 6th, 2016
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