atomic percentage

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• Atomic percent — or at.% is a measure of concentration of dopant, used in chemistry, physics of solid state lasers and spectroscopy.The meaning of this term strongly depends on the context, host material and dopant. In particular, atomic percent may refer to:(A)… …   Wikipedia

• Atomic Age — This article is about the historical era. For the comic book miniseries, see Atomic Age (comics). An early nuclear power plant that used atomic energy to generate electricity. The Atomic Age, also known as the Atomic Era, is a phrase typically… …   Wikipedia

• Atomic ratio — The atomic ratio is a measure of the ratio of atoms of one kind (i) to another kind (j). A closely related concept is the atomic percent (or at.%), which gives the percentage of one kind of atom relative to the total number of atoms. The… …   Wikipedia

• Photoconductive atomic force microscopy — (pc AFM) is a scientific technique.. Multi layer photovoltaic cells have gained popularity since mid 1980s.[1] At the time, research was primarily focused on single layer photovoltaic (PV) devices between two electrodes, in which PV properties… …   Wikipedia

• List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… …   Wikipedia

• Survival Under Atomic Attack — was the title of an official United States government booklet released by the Executive Office of the President, the National Security Resources Board (document 130), and the Civil Defense Office. Released at the dawn of the Cold War era, the… …   Wikipedia

• chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium

• X-ray photoelectron spectroscopy — [ right|thumb|350px|Basic components of a monochromatic XPS system.] X ray photoelectron spectroscopy (XPS) is a quantitative spectroscopic technique that measures the elemental composition, empirical formula, chemical state and electronic state… …   Wikipedia

• Nuclear power — Atomic Power redirects here. For the film, see Atomic Power (film). This article is about the power source. For nation states that are nuclear powers, see List of states with nuclear weapons …   Wikipedia

• Molecular clusters — Atomic and molecular clusters are aggregates of 5 105 atomic or molecular units. They classify according to the forces holding them together: Van der Waals clusters attraction between induced electric dipoles and repulsion between electron cores… …   Wikipedia

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium