what is an angstrom
Angstrom (Ã¥) Angstrom (Ã¥), unit of length used chiefly in measuring wavelengths of light, equal to 10 metre, or 0.1 nanometer. It is named for the 19th-century Swedish physicist Anders Jonas ÃngstrÃ¶m. The angstrom and multiples of it, the micron (10 Ã¥) and the millimicron (10 Ã¥), are also used to measure such quantities as molecular diameters and the thickness of films on liquids.