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When an excited electron falls back to a state of lower energy, it undergoes electron relaxation (deexcitation [4]). This is accompanied by the emission of a photon (radiative relaxation/spontaneous emission) or by a transfer of energy to another particle. The energy released is equal to the difference in energy levels between the electron ...
Atoms can be excited by heat, electricity, or light. The hydrogen atom provides a simple example of this concept.. The ground state of the hydrogen atom has the atom's single electron in the lowest possible orbital (that is, the spherically symmetric "1s" wave function, which, so far, has been demonstrated to have the lowest possible quantum numbers).
An exciton is a bound state of an electron and an electron hole which are attracted to each other by the electrostatic Coulomb force resulting from their opposite charges. It is an electrically neutral quasiparticle regarded as an elementary excitation primarily in condensed matter, such as insulators, semiconductors, some metals, and in some liquids.
An excimer (originally short for excited dimer) is a short-lived polyatomic molecule formed from two species that do not form a stable molecule in the ground state. In this case, formation of molecules is possible only if such atom is in an electronic excited state . [ 1 ]
Apathy, also referred to as indifference, is a lack of feeling, emotion, interest, or concern about something.It is a state of indifference, or the suppression of emotions such as concern, excitement, motivation, or passion.
Schadenfreude (/ ˈ ʃ ɑː d ən f r ɔɪ d ə /; German: [ˈʃaːdn̩ˌfʁɔʏ̯də] ⓘ; lit. Tooltip literal translation "harm-joy") is the experience of pleasure, joy, or self-satisfaction that comes from learning of or witnessing the troubles, failures, pain, suffering, or humiliation of another.
A hole has the opposite charge of an electron. A phonon is a collective excitation associated with the vibration of atoms in a rigid crystal structure. It is a quantum of a sound wave. [9] A magnon is a collective excitation [1] associated with the electrons' spin structure in a crystal lattice. It is a quantum of a spin wave.
Excited state, an elevation in energy level above an arbitrary baseline energy state; Exciter (disambiguation) This page was last edited on 8 ...