effective atomic number

См. также в других словарях:

• Effective atomic number — has two different meanings: one that is the effective nuclear charge of an atom, and one that calculates the average atomic number for a compound or mixture of materials. Both are abbreviated Zeff.For an atomThe effective atomic number Zeff,… …   Wikipedia

• effective atomic number — ▪ chemistry       number that represents the total number of electrons surrounding the nucleus of a metal atom in a metal complex. It is composed of the metal atom s electrons and the bonding electrons from the surrounding electron donating atoms …   Universalium

• effective atomic number — efektinis atominis skaičius statusas T sritis Standartizacija ir metrologija apibrėžtis Sutartinio cheminio elemento, kurio jonizuojančiosios spinduliuotės energijos perdavos koeficientas, tenkantis vienam elektronui, toks pats kaip ir… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

• effective atomic number — efektyvusis atominis skaičius statusas T sritis fizika atitikmenys: angl. effective atomic number vok. effektive Atomnummer, f; effektive Ordnungszahl, f rus. эффективный атомный номер, m pranc. nombre atomique effectif, m …   Fizikos terminų žodynas

• Atomic number — See also: List of elements by atomic number An explanation of the superscripts and subscripts seen in atomic number notation. In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the… …   Wikipedia

• Effective nuclear charge — Diagram The effective nuclear charge is the net positive charge experienced by an electron in a multi electron atom. The term effective is used because the shielding effect of negatively charged electrons prevents higher orbital electrons from… …   Wikipedia

• Atomic nucleus — A figurative depiction of the helium 4 atom with the electron cloud in shades of gray. In the nucleus, the two protons and two neutrons are depicted in red and blue. This depiction shows the particles as separate, whereas in an actual helium atom …   Wikipedia

• Atomic radius — Diagram of a helium atom, showing the electron probability density as shades of gray. The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the nucleus to the boundary of the… …   Wikipedia

• Atomic bombings of Hiroshima and Nagasaki — Part of the Pacific War, World War II …   Wikipedia

• Atomic mirror — In physics, an atomic mirror is a device which reflects neutral atoms in the similar way as the conventional mirror reflects visible light.Atomic mirrors can be made of electric fields or magnetic fields,cite journal… …   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