A unit of length equal to 10 −10 metre, used principally to express the wavelengths of electromagnetic.... Click for pronunciations, examples sentences,...
Back in the late 19th century, scientists used this unit to measure the wavelengths of spectral lines, which are like the fingerprints of chemical elements.
Angstrom definition: a unit of length, equal to one tenth of a millimicron, or one ten millionth of a millimeter, primarily used to express electromagnetic...
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