Gold atoms one Angstrom apart |
 |
|
A remarkable image of gold atoms in a thin crystal layer. The dot of gold is 23 Angstroms across. The Angstrom is a unit of length. One Angstrom is 10-10 meters. The Angstrom was once widely used for wavelengths of visible light, and other spectral lines. The angstrom is the average distance between atoms in crystals and the average wavelength of laboratory produced X-rays. |