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Что (кто) такое atomic literals - определение

METHOD TO IDENTIFY CHEMICAL ELEMENTS BY THEIR ABSORPTION OF RADIATION

STPF; Stpf; Atomic Absorption Spectrometer; Atomic absorption spectrophotometry; Atomic Absorption Spectrophotometry; Atomic absorption spectrometer; Atomic absorption; Atomic absorption spectrometry; Atomic absorption spectrometry determination; Atomic absorption spectrometric determination

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Relative atomic mass

DIMENSIONLESS PHYSICAL QUANTITY: RATIO OF THE AVERAGE MASS OF ATOMS OF AN ELEMENT (IN EACH SAMPLE) TO ONE UNIFIED ATOMIC MASS UNIT. THE UNIFIED ATOMIC MASS UNIT, SYMBOL U, IS DEFINED BEING 1⁄12 OF THE MASS OF A CARBON-12 ATOM

Atomic weight; Atomic Weight; Average atomic mass; Atomic weights; Atomic weight/Table; Atomic wieght; Atomic mass/Table; Standard relative atomic mass; Relative mass

Relative atomic mass (symbol: A) or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. The atomic mass constant (symbol: m) is defined as being of the mass of a carbon-12 atom.

https://en.wikipedia.org/wiki/Relative_atomic_mass

atomic weight

DIMENSIONLESS PHYSICAL QUANTITY: RATIO OF THE AVERAGE MASS OF ATOMS OF AN ELEMENT (IN EACH SAMPLE) TO ONE UNIFIED ATOMIC MASS UNIT. THE UNIFIED ATOMIC MASS UNIT, SYMBOL U, IS DEFINED BEING 1⁄12 OF THE MASS OF A CARBON-12 ATOM

Atomic weight; Atomic Weight; Average atomic mass; Atomic weights; Atomic weight/Table; Atomic wieght; Atomic mass/Table; Standard relative atomic mass; Relative mass

¦ noun Chemistry another term for relative atomic mass.

Atomic Weight

DIMENSIONLESS PHYSICAL QUANTITY: RATIO OF THE AVERAGE MASS OF ATOMS OF AN ELEMENT (IN EACH SAMPLE) TO ONE UNIFIED ATOMIC MASS UNIT. THE UNIFIED ATOMIC MASS UNIT, SYMBOL U, IS DEFINED BEING 1⁄12 OF THE MASS OF A CARBON-12 ATOM

Atomic weight; Atomic Weight; Average atomic mass; Atomic weights; Atomic weight/Table; Atomic wieght; Atomic mass/Table; Standard relative atomic mass; Relative mass

The number expressing the relative weight of the atom of any substance, that of hydrogen being generally taken as unity. This is the universal system, although any other element might be taken as the basis of the system. The whole theory of atomic weights is based on the indivisibility of the atom and on the theory of atomicity, q. v. (See Equivalents.) [Transcriber's note: The standard is now the isotope carbon-12 as exactly 12.]

relative atomic mass

DIMENSIONLESS PHYSICAL QUANTITY: RATIO OF THE AVERAGE MASS OF ATOMS OF AN ELEMENT (IN EACH SAMPLE) TO ONE UNIFIED ATOMIC MASS UNIT. THE UNIFIED ATOMIC MASS UNIT, SYMBOL U, IS DEFINED BEING 1⁄12 OF THE MASS OF A CARBON-12 ATOM

Atomic weight; Atomic Weight; Average atomic mass; Atomic weights; Atomic weight/Table; Atomic wieght; Atomic mass/Table; Standard relative atomic mass; Relative mass

¦ noun Chemistry the ratio of the average mass of one atom of an element to one twelfth of the mass of an atom of carbon-12.

Hartree atomic units

SYSTEM OF MEASUREMENT

Atomic unit of length; Atomic unit; Atomic unit of mass; Atomic unit of charge; Atomic units; Atomic units system; Hartree units

The Hartree atomic units are a system of natural units of measurement which is especially convenient for atomic physics and computational chemistry calculations. They are named after the physicist Douglas Hartree.

https://en.wikipedia.org/wiki/Hartree_atomic_units

Standard atomic weight

RELATIVE ATOMIC MASS, IN SAMPLES BY STANDARD, AS PUBLISHED BY IUPAC (CIAAW)

Conventional atomic weight

The standard atomic weight of a chemical element (symbol Ar°(E) for element "E") is the weighted arithmetic mean of the relative isotopic masses of all isotopes of that element weighted by each isotope's abundance on Earth. For example, isotope 63Cu (Ar = 62.

https://en.wikipedia.org/wiki/Standard_atomic_weight

UKAEA

UK GOVERNMENT RESEARCH ORGANISATION RESPONSIBLE FOR THE DEVELOPMENT OF NUCLEAR FUSION POWER

UKAEA; Atomic Energy Authority; UK Atomic Energy Constabulary; UK Atomic Energy Authority; Atomic Energy Authority Act 1995; The United Kingdom Atomic Energy Authority

¦ abbreviation United Kingdom Atomic Energy Authority.

Atomic electron transition

CHANGE OF AN ELECTRON FROM ONE ENERGY LEVEL TO ANOTHER WITHIN AN ATOM OR ARTIFICIAL ATOM

Atomic electronic transition; Quantum jumps; Electron transitions; Atomic transition

Atomic electron transition is a change (or jump) of an electron from one energy level to another within an atomSchombert, James. "Quantum physics" University of Oregon Department of Physics or artificial atom.

https://en.wikipedia.org/wiki/Atomic_electron_transition

Atomic form factor

MEASURE OF THE SCATTERING AMPLITUDE OF A WAVE BY AN ISOLATED ATOM

Atomic scattering factor; Nuclear form factor

In physics, the atomic form factor, or atomic scattering factor, is a measure of the scattering amplitude of a wave by an isolated atom. The atomic form factor depends on the type of scattering, which in turn depends on the nature of the incident radiation, typically X-ray, electron or neutron.

https://en.wikipedia.org/wiki/Atomic_form_factor

I.A.E.A.

INTERNATIONAL ORGANIZATION THAT SEEKS TO PROMOTE THE PEACEFUL USE OF NUCLEAR ENERGY, AND TO INHIBIT ITS USE FOR ANY MILITARY PURPOSE, INCLUDING NUCLEAR WEAPONS

IAEA; AIEA; International Atomic Energy Authority; I.A.E.A.; International Conference on the Peaceful Uses of Atomic Energy; International Atomic Energy Agency (IAEA); Iaea; Statute of the International Atomic Energy Agency; IAEA Statute; International Atomic Energy Treaty; IAEA Review; Internationale Atomenergieorganisation; Iaea.org

See: International Atomic Energy Agency

Википедия

Atomic absorption spectroscopy

Atomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) is a spectroanalytical procedure for the quantitative determination of chemical elements by free atoms in the gaseous state. Atomic absorption spectroscopy is based on absorption of light by free metallic ions.

In analytical chemistry the technique is used for determining the concentration of a particular element (the analyte) in a sample to be analyzed. AAS can be used to determine over 70 different elements in solution, or directly in solid samples via electrothermal vaporization, and is used in pharmacology, biophysics, archaeology and toxicology research.

Atomic emission spectroscopy was first used as an analytical technique, and the underlying principles were established in the second half of the 19th century by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, both professors at the University of Heidelberg, Germany.

The modern form of AAS was largely developed during the 1950s by a team of Australian chemists. They were led by Sir Alan Walsh at the Commonwealth Scientific and Industrial Research Organisation (CSIRO), Division of Chemical Physics, in Melbourne, Australia.

Atomic absorption spectrometry has many uses in different areas of chemistry such as clinical analysis of metals in biological fluids and tissues such as whole blood, plasma, urine, saliva, brain tissue, liver, hair, muscle tissue. Atomic absorption spectrometry can be used in qualitative and quantitative analysis.

https://en.wikipedia.org/wiki/Atomic absorption spectroscopy