Image caption, LEFT: The structure of diamond showing each carbon atom joined to four others. RIGHT: The structure of graphite with atoms of carbon arranged in layers. Carbon fibres are long ...

The atomic resolution AFM image speaks for itself ... push the approach to identify atomic species, to distinguish a carbon atom from an oxygen or a nitrogen or a sulfur atom, for example.

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

This image illustrates the general structure of an amino acid.The central carbon atom (C) is bonded to a hydrogen atom (H), an amino group (NH2), a carboxyl group (COOH), and a variable side chain (R ...

The technique can help date older samples much more effectively than carbon-14 dating. Chun-Yen Chen aligns the atom trap's optics. Argonne National Laboratory photo. Image available for use with ...