Electron (11689 bytes)
4: !align="center" bgcolor=gray|Electron
6: ...als]]<br /><small>The first few [[hydrogen atom]] electron orbitals<br />shown as cross-sections with color-...
21: |''Electron''
52: ...]s in an [[electron configuration]]. The word ''electron'' is a [[transliteration]] of the [[Greek languag...
54: ...ey generate an [[electric current]]. Because the electrons of an atom determine the way in which it interac...

Electron diffraction (1472 bytes)
1: ...] at a sample and observing their deflection. The electrons are deflected not as [[particle]]s but as [[wave...
3: ...tals. For example, for 100 [[Electronvolt|keV]] [[electrons]] &lambda; < 3.7 x 10^-12 m. Typical l...
5: ...fraction is usually carried out in a Transmission Electron Microscope ([[TEM]]).
10: *[[Gas electron diffraction]]

Electron orbital (1776 bytes)
1: ...al''') is the description of the behavior of an [[electron]] in an [[atom]] or [[molecule]] according to [[q...
4: According to [[quantum mechanics]], an electron in an atom or molecule has two curious properties...
6: 1. An electron's position in space is not determined, but its pr...
8: 2. An electron can only have certain discrete amounts of energy....
11: ... gives no information about a path followed by an electron, and according to the [[Uncertainty principle]] o...

Electron mobility (1197 bytes)
1: ...or [[electron hole|hole]]s in a solid material or electrons/ions in a gas, and an applied [[electric field]]...
7: ... common materials. Mobility is also different for electrons and holes in a [[semiconductor]].
9: Typical electron mobility for GaAs at room temperature is 2000 [[c...
16: .../semiconductorglossary.com/default.asp?searchterm=electron+mobility semiconductor glossary]

Electron ionization (1793 bytes)
1: ...ron ionization''' ('''EI''', formerly known as '''electron impact''') is an [[ionization]] technique widely ...
3: ...icity)|electric current]] running through it. The electrons are accelerated through the ionization space tow...
5: ...s; the molecules then become "transparent" to the electrons, and ionization efficiency decreases.

Electron counting (2814 bytes)
2: [[transition metal]]s, '''electron counting''' is a formalism used for
3: ...aracterizing a compound and for understanding its electronic structure and
6: The [[valence shell]]s of a transition metal are filled when they con...
7: [[electron]]s: 2 each in the 5 d orbitals, or 10 total; 2 e...
8: ..., or 6 total; and finally 2 in the single valence shell s orbital.

Electron microscope (5889 bytes)
1: ...with high [[resolving power]] due to the use of [[electron]]s rather than [[light]] to scatter off material,...
4: The first electron microscope was built in [[1931]] by [[Ernst Ruska...
6: The advantage of an electron beam is that it has a much smaller [[wavelength]]...
7: ... of about 0.2 [[micrometer|micrometres]], whereas electron microscopes can have resolutions as low as 0.1 [[...
10: ... computer screen. The image produced is called an electron micrograph (EM).

Electron configuration (7865 bytes)
1: ...olecular orbital|molecular]], or other forms of [[electron orbital]]s.
4: ...once a state is occupied by an electron, the next electron must occupy a different [[quantum mechanics|quant...
6: ..._s'', and by the Pauli principle no two electrons may share the same values for all four numbers. ...
9: ...erent values of ''l'' are sometimes called '''sub-shells''', and (mainly for historical reasons) are refe...
12: ...value !! Letter !! Maximum number of electrons in shell

Electron (disambiguation) (224 bytes)
1: '''Electron''' can refer to the following things:
3: *A subatomic particle - see [[electron]]
4: *A [[debit card]] - see [[Visa Electron]]
5: ...ter made by [[Acorn Computers Ltd]] - see [[Acorn Electron]]

Electron affinity (7257 bytes)
3: ...'' is the amount of [[energy]] absorbed when an [[electron]] is added to a neutral isolated [[gas]]eous [[at...
5: ...lectrons; [[radon]] most weakly attracts an extra electron.
7: ...oble gas]]es are an exception: they have positive electron affinities.
9: ...s]]es have a full octet, and thus adding an extra electron requires large amounts of energy, but it is possi...
165: <center>[[Periodic table]] of electron affinities, in kJ/mol</center>

Electron deficient (316 bytes)
1: ...nce attract positively charged elements to donate electrons and form a [[covalent bond]] with.

Electron capture (927 bytes)
3: '''Electron capture''' is a [[decay mode]] for [[chemical ele...
5: ...ins unchanged. By changing the number of protons, electron capture transforms the [[nuclide]] into a new [[e...

Electron density (2106 bytes)
1: ...''' is the measure of the [[probability]] of an [[electron]] being present at a specific location.
3: ... such as [[haemoglobin]] and [[chlorophyll]]) the electron density covers an entire region, i.e., in benzene...
7: ...o represent the delocalisation of areas where the electron density is higher next to the single bonds (e.g.,...
9: ...any other high-speed particle experiments involve electrons.

Electron/temp (6986 bytes)
5: !align="center" bgcolor=gray|Electron
7: ...itals]]<br><small>The first few [[hydrogen atom]] electron orbitals<br>shown as cross-sections with color-co...
22: |''Electron''
46: |[http://scienceworld.wolfram.com/physics/ElectronRadius.html Radius]:
54: ...ration]]. The [[antimatter]] counterpart of the electron is its antiparticle, the [[positron]].

Conversion electron (556 bytes)
1: ... producing [[characteristic Röntgen]] and [[Auger electrons]].

Electron hole (3386 bytes)
1: ...e way to analyse the movement of large numbers of electrons in such substances.
3: ...and the person walking out is analogous to a free electron.
7: ...s moved along. If those people were charged (like electrons), this movement would constitute [[electrical co...
9: ...gn a charge of +e - precisely the opposite of the electron charge.
19: ...on in a normally-empty state is simply called an "electron".

Valence electron (292 bytes)
3: ...s''' are the electrons contained in the [[valence shell]] of an [[atom]], and which are likely to partici...

Pro Electron (1065 bytes)
1: ...[liquid crystal display]]s, [[sensor device]]s, [[electronic tube]]s and [[cathode ray tube]]s, ...).
3: ...gium]]. In 1983 it was merged with the [[European Electronic Component Manufacturers Association]] ([[EECA]]...
5: ...lectron is to allow unambiguous identification of electronic parts, even when made by several different manu...
7: Examples of Pro Electron type designators are:
16: *[http://www.eeca.org/pro_elec.htm Pro Electron]

Delocalized electron (893 bytes)
1: ... extends over several adjacent atoms. Delocalized electrons can be found in [[Conjugated system]]s of [[doub...
3: ...[benzene]] the delocalization of six pi electrons electrons over the whole ring is often indicated by the ci...
5: ...ng|center|Benzene, with the delocalization of the electrons indicated by the circle.]]

Electron gun (790 bytes)
1: ...''electron gun''' is a component that produces an electron stream that has a precise kinetic energy, being u...
3: ...filament]], which is heated to create a stream of electrons (a [[thermionic emission]]), with a small initia...
5: ...on guns, each one producing a different stream of electrons, which make either red, green or blue phosphor t...
8: ...stuffworks.com/question694.htm Howstuffworks.com: electron gun]

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