Ångström (Å) is a unit of length equal to 10-10 m. The Ångström is defined in terms of the wavelength of the emission spectra’s red line of an atom of cadmium (6438.4696 Å).
Citing this page:
Generalic, Eni. "Angstrom." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.