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%ما هو (من)٪ 1 - تعريف

ATOM SYNDICATION FORMAT (XML)-USED FOR WEB FEEDS ATOM PUBLISHING PROTOCOL (HTTP)-PROTOCOL FOR CREATING AND UPDATING WEB RESOURCES
Atom/Echo; Atom feed; Atom enabled; Atomfeed; Atom (feed); ATOM; Atom blog API; ATOM (standard); Atom Publishing Protocol; Atom Syndication Format; .atom; Atom (file format); AtomPub; Atom XML; Atom rss; Atom Feed; ATOM feed; Comparison of RSS and Atom; Atom (format); Atompub; Atom (standard); Atom RSS; Atom (syndication); Atom (Web standard)
  • User interface of a feed reader

atom         
  • hydrogen-like]] atomic orbitals showing probability density and phase ('''g''' orbitals and higher are not shown)
  • These electron's energy levels (not to scale) are sufficient for ground states of atoms up to [[cadmium]] (5s<sup>2</sup> 4d<sup>10</sup>) inclusively. Do not forget that even the top of the diagram is lower than an unbound electron state.
  • 100]]) surface. The surface atoms deviate from the bulk [[crystal structure]] and arrange in columns several atoms wide with pits between them (See [[surface reconstruction]]).
  • The [[binding energy]] needed for a nucleon to escape the nucleus, for various isotopes
  • The Bohr model of the atom, with an electron making instantaneous "quantum leaps" from one orbit to another with gain or loss of energy. This model of electrons in orbits is obsolete.
  • Graphic illustrating the formation of a [[Bose–Einstein condensate]]
  • Atoms and molecules as depicted in [[John Dalton]]'s ''A New System of Chemical Philosophy'' vol. 1 (1808)
  • An example of absorption lines in a spectrum
  • The [[Geiger–Marsden experiment]]:<br /> ''Left:'' Expected results: alpha particles passing through the plum pudding model of the atom with negligible deflection.<br /> ''Right:'' Observed results: a small portion of the particles were deflected by the concentrated positive charge of the nucleus.
  • 2}}</sub>) of various isotopes with Z protons and N neutrons.
  • Periodic table showing the origin of each element. Elements from carbon up to sulfur may be made in small stars by the [[alpha process]]. Elements beyond iron are made in large stars with slow neutron capture ([[s-process]]). Elements heavier than iron may be made in neutron star mergers or supernovae after the [[r-process]].
  • A potential well, showing, according to [[classical mechanics]], the minimum energy ''V''(''x'') needed to reach each position ''x''. Classically, a particle with energy ''E'' is constrained to a range of positions between ''x''<sub>1</sub> and ''x''<sub>2</sub>.
  • Illustration of a nuclear fusion process that forms a deuterium nucleus, consisting of a proton and a neutron, from two protons. A [[positron]] (e<sup>+</sup>)—an [[antimatter]] electron—is emitted along with an electron [[neutrino]].
SMALLEST UNIT OF A CHEMICAL ELEMENT
Atoms; Atomic chemical; Atom and Atomic Theory; Atomic structure; Polyelectronic atoms; Bound-bound; Bound-bound transition; Structure of the atom; Multielectron atom; Ancient atom; Chemical atom; Chemical Atom; Number of atoms on Earth; Polyelectronic; Monoelectronic; Atomic system
n.
1.
Molecule, monad, ultimate particle (of any element), indivisible particle.
2.
Corpuscle, scrap, mite, bit, grain, jot, iota, tittle, whit, ace, scintilla.
atom         
  • hydrogen-like]] atomic orbitals showing probability density and phase ('''g''' orbitals and higher are not shown)
  • These electron's energy levels (not to scale) are sufficient for ground states of atoms up to [[cadmium]] (5s<sup>2</sup> 4d<sup>10</sup>) inclusively. Do not forget that even the top of the diagram is lower than an unbound electron state.
  • 100]]) surface. The surface atoms deviate from the bulk [[crystal structure]] and arrange in columns several atoms wide with pits between them (See [[surface reconstruction]]).
  • The [[binding energy]] needed for a nucleon to escape the nucleus, for various isotopes
  • The Bohr model of the atom, with an electron making instantaneous "quantum leaps" from one orbit to another with gain or loss of energy. This model of electrons in orbits is obsolete.
  • Graphic illustrating the formation of a [[Bose–Einstein condensate]]
  • Atoms and molecules as depicted in [[John Dalton]]'s ''A New System of Chemical Philosophy'' vol. 1 (1808)
  • An example of absorption lines in a spectrum
  • The [[Geiger–Marsden experiment]]:<br /> ''Left:'' Expected results: alpha particles passing through the plum pudding model of the atom with negligible deflection.<br /> ''Right:'' Observed results: a small portion of the particles were deflected by the concentrated positive charge of the nucleus.
  • 2}}</sub>) of various isotopes with Z protons and N neutrons.
  • Periodic table showing the origin of each element. Elements from carbon up to sulfur may be made in small stars by the [[alpha process]]. Elements beyond iron are made in large stars with slow neutron capture ([[s-process]]). Elements heavier than iron may be made in neutron star mergers or supernovae after the [[r-process]].
  • A potential well, showing, according to [[classical mechanics]], the minimum energy ''V''(''x'') needed to reach each position ''x''. Classically, a particle with energy ''E'' is constrained to a range of positions between ''x''<sub>1</sub> and ''x''<sub>2</sub>.
  • Illustration of a nuclear fusion process that forms a deuterium nucleus, consisting of a proton and a neutron, from two protons. A [[positron]] (e<sup>+</sup>)—an [[antimatter]] electron—is emitted along with an electron [[neutrino]].
SMALLEST UNIT OF A CHEMICAL ELEMENT
Atoms; Atomic chemical; Atom and Atomic Theory; Atomic structure; Polyelectronic atoms; Bound-bound; Bound-bound transition; Structure of the atom; Multielectron atom; Ancient atom; Chemical atom; Chemical Atom; Number of atoms on Earth; Polyelectronic; Monoelectronic; Atomic system
¦ noun
1. the smallest particle of a chemical element, consisting of a positively charged nucleus (containing protons and typically also neutrons) surrounded by negatively charged electrons.
2. [usu. with negative] an extremely small amount.
Origin
C15: from OFr. atome, via L. from Gk atomos 'indivisible', based on a- 'not' + temnein 'to cut'.
atom         
  • hydrogen-like]] atomic orbitals showing probability density and phase ('''g''' orbitals and higher are not shown)
  • These electron's energy levels (not to scale) are sufficient for ground states of atoms up to [[cadmium]] (5s<sup>2</sup> 4d<sup>10</sup>) inclusively. Do not forget that even the top of the diagram is lower than an unbound electron state.
  • 100]]) surface. The surface atoms deviate from the bulk [[crystal structure]] and arrange in columns several atoms wide with pits between them (See [[surface reconstruction]]).
  • The [[binding energy]] needed for a nucleon to escape the nucleus, for various isotopes
  • The Bohr model of the atom, with an electron making instantaneous "quantum leaps" from one orbit to another with gain or loss of energy. This model of electrons in orbits is obsolete.
  • Graphic illustrating the formation of a [[Bose–Einstein condensate]]
  • Atoms and molecules as depicted in [[John Dalton]]'s ''A New System of Chemical Philosophy'' vol. 1 (1808)
  • An example of absorption lines in a spectrum
  • The [[Geiger–Marsden experiment]]:<br /> ''Left:'' Expected results: alpha particles passing through the plum pudding model of the atom with negligible deflection.<br /> ''Right:'' Observed results: a small portion of the particles were deflected by the concentrated positive charge of the nucleus.
  • 2}}</sub>) of various isotopes with Z protons and N neutrons.
  • Periodic table showing the origin of each element. Elements from carbon up to sulfur may be made in small stars by the [[alpha process]]. Elements beyond iron are made in large stars with slow neutron capture ([[s-process]]). Elements heavier than iron may be made in neutron star mergers or supernovae after the [[r-process]].
  • A potential well, showing, according to [[classical mechanics]], the minimum energy ''V''(''x'') needed to reach each position ''x''. Classically, a particle with energy ''E'' is constrained to a range of positions between ''x''<sub>1</sub> and ''x''<sub>2</sub>.
  • Illustration of a nuclear fusion process that forms a deuterium nucleus, consisting of a proton and a neutron, from two protons. A [[positron]] (e<sup>+</sup>)—an [[antimatter]] electron—is emitted along with an electron [[neutrino]].
SMALLEST UNIT OF A CHEMICAL ELEMENT
Atoms; Atomic chemical; Atom and Atomic Theory; Atomic structure; Polyelectronic atoms; Bound-bound; Bound-bound transition; Structure of the atom; Multielectron atom; Ancient atom; Chemical atom; Chemical Atom; Number of atoms on Earth; Polyelectronic; Monoelectronic; Atomic system
(atoms)
An atom is the smallest amount of a substance that can take part in a chemical reaction.
N-COUNT

ويكيبيديا

Atom (web standard)

The name Atom applies to a pair of related Web standards. The Atom Syndication Format is an XML language used for web feeds, while the Atom Publishing Protocol (AtomPub or APP) is a simple HTTP-based protocol for creating and updating web resources.

Web feeds allow software programs to check for updates published on a website. To provide a web feed, the site owner may use specialized software (such as a content management system) that publishes a list (or "feed") of recent articles or content in a standardized, machine-readable format. The feed can then be downloaded by programs that use it, like websites that syndicate content from the feed, or by feed reader programs that allow internet users to subscribe to feeds and view their content.

A feed contains entries, which may be headlines, full-text articles, excerpts, summaries or links to content on a website along with various metadata.

The Atom format was developed as an alternative to RSS. Ben Trott, an advocate of the new format that became Atom, believed that RSS had limitations and flaws—such as lack of on-going innovation and its necessity to remain backward compatible—and that there were advantages to a fresh design.

Proponents of the new format formed the IETF Atom Publishing Format and Protocol Workgroup. The Atom Syndication Format was published as an IETF proposed standard in RFC 4287 (December 2005), and the Atom Publishing Protocol was published as RFC 5023 (October 2007).

أمثلة من مجموعة نصية لـ٪ 1
1. So the electrons bounce from atom to atom, taking electricity along with them.
2. These molecules are made up of an atom of oxygen and an atom of hydrogen.
3. Why is the West dealing only with the Iranian atom and ignoring the Israeli atom, ask the Egyptians.
4. This is because the tiny atoms which make up metals contain even tinier electrons that can move from atom to atom.
5. After all, what would Hawkman be without The Atom?