atomic structure


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atomic structure

[ə′täm·ik ′strək·chər]
(atomic physics)
The arrangement of the parts of an atom, which consists of a massive, positively charged nucleus surrounded by a cloud of electrons arranged in orbits describable in terms of quantum mechanics.
References in periodicals archive ?
Nevertheless, several fascinating websites of high pedagogical quality that focus on atomic structure do exist.
Through NASA funding research in space and on the ground, and the application of space technology, we have determined the three-dimensional atomic structure of a potentially very important therapeutic antibody to this virus," indicates Daniel Carter, president of New Century Pharmaceuticals, Huntsville, Ala.
For ICAMDATA papers were presented on atomic structure, electron and photon impact processes, heavy particle collisions, and atomic and molecular data center.
These results show that the atomic structure of quasicrystals and ordinary crystals can be understood in terms of a single repeating unit, Steinhardt says.
All the while, researchers have dreamed of extending this rewarding means of probing atomic structure and behavior to molecules.
Amorphous alloys are unique materials that are characterized by a random atomic structure, in contrast to the crystalline atomic structure possessed by ordinary metals and alloys.
He examines basic principles of atomic structure, plasmas, emission and absorption of radiation, ionization, and dissociation and explains the use and operation of spectrometric instrumentation and sample introduction devices.
The ultimate goal of protein crystallography is to construct a detailed representation of the atomic structure of the protein.
So far, they have "circumstantial evidence," but the proof lies in electron diffraction measurements that should allow the researchers to deduce the exact atomic structure of the layered material.
Topics include the adsorption process of a silica cluster on a polyimide surface, the recycling mechanism of discontinuously reinforced aluminum matrix composites, the atomic structure of hydrogen storage amorphous alloys, and the effect of grain size on the reaction between lead-free solder and plated iron.
The origins of the stained glass myth are unclear, but the confusion probably arose from a misunderstanding of the amorphous atomic structure of glass, in which atoms do not assume a fixed crystal structure.
Fortunately, once this atomic structure is built, the 'dancing style' of the atoms can be controlled by the laser tuning.