energy state

also called  Energy Level,  

      in physics, any discrete value from a set of values of total energy for a subatomic particle confined by a force to a limited space or for a system of such particles, such as an atom or a nucleus. A particular hydrogen atom, for example, may exist in any of several configurations, each having a different energy. These energy states, in their essentials, remain fixed and are referred to as stationary states.

      The state of a hydrogen atom, or any submicroscopic system, however, may change from one configuration to another by emitting or absorbing a discrete amount of energy. Such configurations are also called energy levels; the atom, or system, is said to undergo a transition between two energy levels when it emits or absorbs energy. The lowest energy level of a system is called its ground state; higher energy levels are called excited states. See also Franck-Hertz experiment.

* * *

Universalium. 2010.

Look at other dictionaries:

  • energy state — noun a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules according to quantum theory only certain energy levels are possible • Syn: ↑energy level • Hypernyms: ↑energy, ↑free… …   Useful english dictionary

  • energy state — energinė būsena statusas T sritis fizika atitikmenys: angl. energetic state; energy state vok. energetischer Zustand, m; Energiezustand, m rus. энергетическое состояние, n pranc. état énergétique, m …   Fizikos terminų žodynas

  • energy state — energinė būsena statusas T sritis Standartizacija ir metrologija apibrėžtis Tam tikra energija apibūdinama sistemos arba ją sudarančių elementų būsena. atitikmenys: angl. energy state vok. Energiezustand, m rus. энергетическое состояние, n pranc …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • energy state — noun see energy level …   New Collegiate Dictionary

  • Solar Energy State — Arizona …   Eponyms, nicknames, and geographical games

  • Wheat Energy State — North Dakota …   Eponyms, nicknames, and geographical games

  • Energy transfer upconversion — or ETU is a physical principle (most commonly encountered in solid state laser physics) that involves the excitation of a laser active ion to a level above that which would be achieved by simple absorption of a pump photon, the required… …   Wikipedia

  • Energy policy of the United States — The energy policy of the United States is determined by federal, state and local public entities in the United States, which address issues of energy production, distribution, and consumption, such as building codes and gas mileage standards.… …   Wikipedia

  • Energy level — A quantum mechanical system or particle that is bound that is, confined spatially can only take on certain discrete values of energy. This contrasts with classical particles, which can have any energy. These discrete values are called energy… …   Wikipedia

  • Energy — This article is about the scalar physical quantity. For other uses, see Energy (disambiguation). Energetic redirects here. For other uses, see Energetic (disambiguation) …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.