ionised atom

См. также в других словарях:

• Radioactive decay — For particle decay in a more general context, see Particle decay. For more information on hazards of various kinds of radiation from decay, see Ionizing radiation. Radioactive redirects here. For other uses, see Radioactive (disambiguation).… …   Wikipedia

• H II region — An H II region (also known as emission nebula) is a cloud of glowing gas and plasma, sometimes several hundred light years across, in which star formation is taking place. Young, hot, blue stars which have formed from the gas emit copious amounts …   Wikipedia

• Smiles arbitrary target specification — (SMARTS) is a language for specifying substructural patterns in molecules. The SMARTS line notation is expressive and allows extremely precise and transparent substructural specification and atom typing.SMARTS is related to the SMILES line… …   Wikipedia

• Ionization — is the physical process of converting an atom or molecule into an ion by adding or removing charged particles such as electrons or other ions.This process works slightly differently depending on whether an ion with a positive or a negative… …   Wikipedia

• Radiography — For medical radiography see: RadiologyRadiography is the use of X rays to view unseen or hard to image objects. The main diagnostic purposes of X rays are to see inside ones body, especially of the brain and fetus, where the bones can be viewed… …   Wikipedia

• Ion thruster — An ion thruster is a form of electric propulsion used for spacecraft propulsion that creates thrust by accelerating ions. Ion thrusters are characterized by how they accelerate the ions, using either electrostatic or electromagnetic force.… …   Wikipedia

• Chemical symbol — A chemical symbol is a 1 or 2 letter internationally agreed code for a chemical element, usually derived from the name of the element, often in Latin. Only the first letter is capitalised. For example, He is the symbol for helium (English name,… …   Wikipedia

• Inductively coupled plasma mass spectrometry — ICP MS Instrument Acronym ICP MS Classification Mass spectrometry Analytes atomic and polyatomic species in plasma, with exceptions; usually inte …   Wikipedia

• Photoionisation — is the physical process in which an incident photon ejects one or more electrons from an atom, ion or molecule.The ejected electrons, known as photoelectrons, carry information about their pre ionised states. For example, a single electron can… …   Wikipedia

• Donor (semiconductors) — In semiconductor physics, a donor is a dopant atom that, when added to a semiconductor, can form n type regions. Phosphorus atom acting as a donor in the simplified 2D Silicon lattice. For example, when silicon (Si), having four valence electrons …   Wikipedia

• Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …   Wikipedia