Ångström

An Ångström (symbol: Å) is a unit of length used mainly to measure very small distances, such as those found in atoms and molecules. One Ångström equals 10⁻¹⁰ meters, or 0.1 nanometers, which is about the size of an atom. It’s useful in physics and chemistry to describe the size of atomic structures and the distances between atoms in a material. While not part of the International System of Units (SI), it provides a convenient way to express these tiny measurements with clarity and precision.