U+212B "Å" Angstrom Sign Unicode Character

U+212B "Å" Angstrom Sign is a typographic symbol representing the angstrom, a unit of length equal to one ten-billionth of a meter, commonly used in physics and chemistry to measure atomic-scale distances. It is visually identical to the Latin capital letter A with a ring above, but it is encoded separately for compatibility with preexisting character sets and legacy systems where it was treated as a distinct character. The Angstrom Sign is most often used in scientific notation, such as specifying wavelengths of light or atomic radii, and while it can be substituted by the combining ring character with an "A", having its own code point ensures reliable representation in specialized documents.