electron

(Bilim, İlim) Taramalı Elektron Mikroskobunda (SEM) görüntü, yüksek voltaj ile hızlandırılmış elektronların numune üzerine odaklanması, bu elektron demetinin numune yüzeyinde taratılması sırasında elektron ve numune atomları arasında oluşan çeşitli girişimler sonucunda meydana gelen etkilerin uygun algılayıclarda toplanması ve sinyal güçlendiricilerinden geçirildikten sonra bir katot ışınları tüpünün ekranına aktarılmasıyla elde edilir.Modern sistemlerde bu algılayıcılardan gelen sinyaller dijital sinyallere çevrilip bilgisayar monitörüne verilmektedir

secondary electron

sekonder elektron, ikincil elektron

tera-electron-volt (1012 ev)

tera elektron volt (1012 ev)

transmission electron microscopy

transmisyon elektron mikroskobu

auger electron specktroscopy

auger (ojey) elektron spektroskopisi

bound electron

bagli elektron

capture of electron

(Kimya) elektron yakalaması

charge of an electron

elektronun yuku

excited electron

(Fizik) eksite elektron

excited electron

(Fizik) uyarık elektron

excited electron

(Fizik,Kimya) uyarılmış elektron

free electron

serbest elektron

internal conversion electron

(Nükleer Bilimler) iç dönüşüm elektronu

k electron

k-yörüngesi elektronu

k electron

k elektronu

linac Linear Electron Accelerator

(Nükleer Bilimler) doğrusal elektron hızlandırıcısı

linear electron accelerator

(Nükleer Bilimler) (linac) doğrusal elektron artifical element

lone electron

tek elektron

mass of an electron

elektronun kutlesi

million electron volt

(Çevre) milyon electron volt

orbital electron

(Nükleer Bilimler) yörüngesel elektron

orbital electron capture

(Nükleer Bilimler) yörüngesel elektron yakalanması

outer shell electron

(Nükleer Bilimler) dış yörünge elektronu

peripheral electron

(Fizik) dış elektron

peripheral electron

(Fizik) çevrel elektron

photo electron

(Nükleer Bilimler) ışıl elektron

scanning electron microscobe

taramali elektron mikroskobu

English - English

Definition of electron in English English dictionary: An alloy of magnesium and aluminum; The subatomic particle having a negative charge and orbiting the nucleus; the flow of electrons in a conductor constitutes electricity; {n} a name given to the sun, the supposed center and source of electricity; A negatively charged sustainable elementary particle that consists of ordinary matter Atoms consist of a positively charged nucleus surrounded by a cloud of negatively charged electrons Electrons emitted from the nucleus of an atom are called beta particles; Electrons are small nuclear particles with a negative electrical charge usually found moving around atomic nuclei When not associated with atomic nuclei, they are often referred to as beta particles They have a mass of 9 10 X 10-28 grams; this is 1/1836 the mass of a proton; The subatomic particle that possesses the smallest possible negative electric charge (4 80298 * 10-10 electrostatic units) See physical constants, table; A negatively charged particle; one of the three basic kinds of particles that make up an atom Electrons can either be free or orbit the nucleus of an atom; The smallest particle of negative electricity; 1 A subatomic particle with a negative electric charge that orbits the nucleus of an atom 2 The basic particle that makes up an electric current; A small, indivisible particle that orbits the nucleus of an atom; It has been detected only when in rapid motion; its mass, which is electromagnetic, is practically constant at the lesser speeds, but increases as the velocity approaches that of light; an elementary particle with negative charge; 4 x 10-10 electrostatic units; An atom from which an electron has been detached has a positive charge and is called a coelectron; An elementary particle with a unit electrical charge and a mass 1/1837 that of the proton Electrons surround the atom's positively charged nucleus and determine the atom's chemical properties; The negatively charged component of an atom and the unit of negative electrical charge that makes up a current search; a fundamental particle of very low mass, carrying a negative electric charge and found in all atoms Electrons can be energized or even torn from atoms by light and by collisions, and they are responsible for many electric phenomena in solid matter and in plasmas; The least massive electrically charged particle, therefore absolutely stable It is the most common lepton with charge -1 An electron is one of the fundamental particles in nature Fundamental means that, as far as we know, an electron cannot be broken down into smaller particles Electrons are responsible for many of the phenomena that we observe in everyday life Mutual repulsion between electrons in the atoms of the floor and those within your shoes keeps you from sinking and disappearing into the floor!!! Electrons carry electrical current and successful manipulation of electrons allows electronic devices, such as the one you are using, to function; negatively-charged subatomic particle that moves around the atomic nucleus in specific energy levels It has about 1800 times less mass than the proton and neutron; Subatomic particle (with wave-like qualities!), negatively charged Found in all atoms; balances charge of nucleus; A negatively charged particle commonly found in the outer layers of atoms The electron has only 0 0005 the mass of the proton; A minute atomic particle possessing the smallest amount of negative charge found in nature In an atom the electrons rotate around a small nucleus The weight of an electron is so incredibly small that it would take 500 octillions ( followed by 27 zeros) of them to make a pound It is only about a two-thousandth of the mass of a proton or neutron See also: Proton, Neutron; A negatively charged elementary particle that normally resides outside (but is bound to) the nucleus of an atom; An electron is a tiny particle of matter that is smaller than an atom and has a negative electrical charge. a very small piece of matter with a negative electrical charge that moves around the nucleus (=central part) of an atom proton, neutron neutron (electro- + -on (as in ion)). Lightest electrically charged subatomic particle known. It carries a negative charge (see electric charge), the basic charge of electricity. An electron has a small mass, less than 0.1% the mass of an atom. Under normal circumstances, electrons move about the nucleus of an atom in orbitals that form an electron cloud bound in varying strengths to the positively charged nucleus. Electrons closer to the nucleus are held more tightly. The first subatomic particle discovered, the electron was identified in 1897 by J. J. Thomson. electron microscopy electron spin resonance electron paramagnetic resonance EPR; Amber; also, the alloy of gold and silver, called electrum; a subatomic particle possessing negative charge; the sub-atomic particle, with a negative charge, that orbits the nucleus of an atom; One of those particles, having about one thousandth the mass of a hydrogen atom, which are projected from the cathode of a vacuum tube as the cathode rays and from radioactive substances as the beta rays; called also corpuscle; {i} negatively charged particle which is a fundamental component of matter and exists independently or outside the nucleus of an atom (Physics, Chemistry); A negatively charged particle that is a constituent of an atom; Electrons are all of one kind, so far as known, and probably are the ultimate constituents of all atoms; A light atomic particle with a fixed negative electric charge; (chem) A subatomic particle with a negative electric charge equal in magnitude to the positive charge of the PROTON but with a much smaller MASS; electrons orbit the ATOM's positively charged nucleus and determine its chemical properties; The electron carries (or is) a natural unit of negative electricity, equal to 3; A sub-particle of an atom that contains a negative atomic charge; An sub-atomic particle which allows the atom to react with its environment and form bonds with other atoms Electrons and their orbits around the nucleus of an atom account for most of the physical properties of the element Used extensively in Electron Microscopy; A subatomic (elementary) particle carrying a unit negative charge; A negatively charged particle that orbits rapidly around the nucleus of an atom See also proton; e
electron capture detector: An item of laboratory equipment used coupled to a gas chromatograph for the detection and quantification of very minute amounts halogenated organic compounds
electron capture detectors: plural form of electron capture detector
electron carrier: Any of several classes of molecule that acts as both an acceptor and donator of electrons and functions in an energy-producing system such as photosynthesis
electron cloud: A mathematically defined region around an atomic nucleus defined by a high probability that the atom's electrons will be present in that region
electron clouds: plural form of electron cloud
electron configuration: The arrangement of electrons in an atom, molecule, or other physical structure like a crystal
electron configurations: plural form of electron configuration
electron cryomicroscopy: The electron microscopy of sensitive biological materials carried out at low temperature so as to limit damage to the structure of the material being examined
electron density: A measure of the number of electrons per unit volume of space
electron density: A measure of the probability of finding an electron at a specific location within an orbital
electron gun: Any device that produces a stream of electrons, especially a narrow stream that is focused onto a phosphor screen
electron guns: plural form of electron gun
electron micrograph: A micrograph produced using an electron microscope
electron micrographs: plural form of electron micrograph
electron microscope: Any of several forms of microscope that use a beam of electrons rather than one of light and thus has a much greater resolving power
electron microscopes: plural form of electron microscope
electron microscopy: microscopy carried out using an electron microscope
electron neutrino: an elementary particle, a lepton, having near-zero mass and no charge
electron number: The number of electrons in an atom or ion
electron pair: Two electrons having opposite spin but all other quantum numbers the same; i.e two electrons in the same atomic orbital or molecular orbital, especially such electrons that function in concert to form a covalent bond
electron spin resonance: The absorption of radiation by species having unpaired electrons when placed in a magnetic field that is used spectroscopically to detect and study free radicals
electron transfer reaction: a reaction in which a single electron is transferred from one molecule to another; one being oxidized and the other reduced (also known as a redox reaction); long-range electron transfer reactions are important in biological reactions involving metalloproteins such as haemoglobin
electron transfer reactions: plural form of electron transfer reaction
electron tube: Any of several devices consisting of a sealed chamber, either evacuated or filled with gas at low pressure, in which an electric current flows between electrodes
electron tubes: plural form of electron tube
electron volt: A unit for measuring the energy of subatomic particles; the energy equal to that attained by an electron moving through a potential difference of one volt. Equivalent to 1.6022 x 10-19 joules
electron wave function: A function of the position and spin of an electron; related to the probability of finding the electron in a specified position
electron field emission: (Elektrik, Elektronik) Field electron emission (FE) (also known as field emission and - in some contexts - electron field emission) is a phenomenon involving the electric field induced emission of electrons from the surface of a condensed material (either solid or liquid), into vacuum or into another material. This second material may be a gas, a liquid, or a non-metallic solid with low electrical conductivity. FE occurs at surface locations where the local surface electric field is particularly high. To generate significant amounts of emission, fields of 1 volt per nanometre (1 V/nm, or 1 000 000 000 volts per metre) or more are required. The exact field needed depends both on the nature of the materials involved and on the amount of electron current being generated. No external stimulation (in particular, no heating) is needed
electron transport chain: (Biyoloji) The sequential transfer of electrons especially by cytochromes in cellular respiration from an oxidizable substrate to molecular oxygen by a series of oxidation-reduction reactions
electron transport chain: (Biyoloji) An electron transport chain associates electron carriers and mediating biochemical reactions that produce adenosine triphosphate (ATP), which is the energy currency of life. Only two sources of energy are available to living organisms: oxidation-reduction (redox) reactions and sunlight (used for photosynthesis). Organisms that use redox reactions to produce ATP are called chemotrophs. Organisms that use sunlight are called phototrophs. Both chemotrophs and phototrophs utilize electron transport chains to convert energy into ATP
electron accelerator: collider that consists of an accelerator that collides electrons and positrons
electron accelerator: device which increases the speed of electrons to a very high rate by means of electric fields (used for research purposes)
electron acceptor: A substance that accepts electrons during an oxidation-reduction reaction An electron acceptor is an oxidant
electron acceptor: Small inorganic or organic compound that is reduced in a metabolic redox reaction
electron acceptor: A substance that accepts electrons and is reduced during an oxidation-reduction reaction Examples of electron acceptors used by bacteria are oxygen (aerobes), nitrate (nitrate reducing bacteria), sulfate (sulfate reducers)
electron acceptor: Relatively oxidized compounds which gain electrons from electron donors during cellular respiration and oxidation-reduction reactions, resulting in the release of energy to the cell and the reduction of the electron acceptor Microorganisms obtain energy by transferring electrons from electron donors such as organic compounds (or sometimes reduced inorganic compounds such as sulfide) to an electron acceptor Electron acceptors are compounds that are relatively oxidized and include oxygen, nitrate, iron (III), manganese (IV), sulfate, carbon dioxide, or in some cases the chlorinated aliphatic hydrocarbons such as tetrachloroethene (PCE), trichloroethene (TCE), dichloroethene (DCE) and vinyl chloride (VC)
electron acceptor: A compound which accepts electrons during biotic or abiotic chemical reactions and is thereby reduced
electron acceptor: Substance that accepts electrons during an oxidation-reduction reaction An electron acceptor is an oxidant
electron acceptor: A substance that accepts electrons during an oxidation-reduction reaction Examples for bacteria are oxygen (aerobes), nitrate (nitrate reducing bacteria), and sulfate (sulfate reducers)
electron affinity: The energy given off when a neutral atom in the gas phase picks up an electron to form a negatively charged ion
electron affinity: a measure of the energy involved when an electron is added to a gaseous atom to form a negative ion
electron affinity: The amount of energy absorbed in the process in which an electron is added to a neutral isolated gaseous atom to form a gaseous ion with a 1- charge; has a negative value if energy is released
electron affinity: The energy released when an electron is added to an atom If the electron affinity is negative, then energy is required to attach an electron to the atom
electron affinity: how much something wants to pick up electrons A exothermic electron gain corresponds to a positive electron affinity
electron affinity: the energy change associated with the addition of an electron to a gaseous atom (12 15)
electron affinity: the energy change associated with the addition of an electron to a gaseous atom
electron beam: shaft of electrons moving at high speed in the same direction
electron charge: negative electrical charge of one electron, physical constant equal to one unit of negative electrical charge (equal to -1.602 X 10 ^-19 coulomb)
electron current: movement of electrons transported via an electric current
electron emission: flowing out of electrons
electron gun: The electrode, especially in a cathode-ray tube, that produces a beam of accelerated electrons
electron gun: the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it
electron gun: electron-emitting cathode for directing and focusing a stream of electrons
electron hole: (Physics) lack of an electron, empty position in a crystal abandoned by the lack of an electron
electron lens: Any of various devices that use an electric or magnetic field to focus a beam of electrons
electron micrograph: A micrograph made by an electron microscope
electron microscope: Any of a class of microscopes that use electrons rather than visible light to produce magnified images, especially of objects having dimensions smaller than the wavelengths of visible light, with linear magnification approaching or exceeding a million (10). a very powerful microscope (=scientific instrument used for looking at small objects) that uses electrons instead of light to make things look larger
electron microscope: a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light
electron microscope: device that focuses a beam of electrons to form a greatly enlarged image of an object
electron microscopic: of or relating to or involving an electron microscope
electron microscopy: microscopy with the use of electron microscopes
electron microscopy: Microscopy involving use of an electron microscope.electron microscopist n. Technique that allows examination of samples too small to be seen with a light microscope. Electron beams have much smaller wavelengths than visible light and hence higher resolving power. To make them more observable, samples may be coated with metal atoms. Because electrons cannot travel very far in air, the electron beam and the sample must be kept in a vacuum. Two different instruments are used. In the scanning electron microscope, a moving beam of electrons is scanned across a sample; electrons scattered by the object are focused by magnetic "lenses" to produce an image of the object's surface similar to an image on a television screen. The images appear three-dimensional; they may be of small organisms or their parts, of molecules such as DNA, or even of large individual atoms (e.g., uranium, thorium). In the transmission electron microscope, the electron beam passes through a very thin, carefully prepared sample and is focused onto a screen or photographic plate to visualize the interior structure of such specimens as cells and tissues
electron multiplier: A vacuum tube in which a single electron produces a large number of secondary electrons by collision with an anode, the process generally being repeated through a number of stages to achieve great amplification of current
electron multiplier: a vacuum tube that amplifies a flow of electrons
electron neutrino: A stable elementary particle in the lepton family having a mass of zero, or very close to zero, and no charge
electron optics: branch in physics in which the principals of optics are applied to beams of electrons
electron optics: the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields
electron optics: The science of the control of electron motion by electron lenses in systems or under conditions analogous to those involving or affecting visible light
electron shared: electron influenced by gravitational forces of different atoms through which a connection is created between them
electron shell: a grouping of electrons surrounding the nucleus of an atom; "the chemical properties of an atom are determined by the outermost electron shell
electron spin resonance: microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet
electron spin resonance: or electron paramagnetic resonance (EPR) Technique of spectroscopic analysis (see spectroscopy) used to identify paramagnetic substances (see paramagnetism) and investigate the nature of the bonding within molecules by identifying unpaired electrons and their interaction with their immediate surroundings. Unpaired electrons, because of their spin, behave like tiny magnets and can be lined up in an applied magnetic field; energy applied by alternating microwave radiation is absorbed when its frequency coincides with that of precession of the electron magnets in the sample. The graph or spectrum of radiation absorbed as the field changes gives information valuable in chemistry, biology, and medicine
electron telescope: telescope that uses beams of electrons
electron transport: The successive passage of electrons from one cytochrome or flavoprotein to another by a series of oxidation-reduction reactions during the aerobic production of ATP, with the electrons originating from an oxidizable substrate and ultimately being passed to molecular oxygen. The oxidation-reduction reactions generate the energy required for the production of ATP
electron tube: tube: electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
electron tube: A sealed enclosure, either highly evacuated or containing a controlled quantity of gas, in which electrons can be made sufficiently mobile to act as the principal carriers of current between at least one pair of electrodes
electron volt: a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 volt
electron volt: A unit of energy equal to the energy acquired by an electron falling through a potential difference of one volt, approximately 1.602 × 10- joules. See table at measurement
electron volt: unit of energy
cryo-electron microscopy: A form of electron microscopy in which the sample is held at a very low temperature
cryo-transmission electron microscopy: A form of transmission electron microscopy in which the sample is held at a very low temperature
immunogold electron microscopy: A form of electron microscopy in which gold particles are used to label antibodies
monochromated scanning transmission electron microscope: A scanning transmission electron microscope that is able to focus electrons to a probe of about 0.14 nm and thus distinguish individual atoms
monochromated scanning transmission electron microscopes: plural form of monochromated scanning transmission electron microscope
scanning electron microscope: An electron microscope whose image is made up of a matrix of points from scanning the surface of a sample
scanning electron microscopes: plural form of scanning electron microscope
scanning electron microscopy: microscopy using a scanning electron microscope
scanning transmission electron microscope: An electron microscope that transmits a very narrow beam of electrons through a sample; it can detect individual large or heavy atoms
scanning transmission electron microscopes: plural form of scanning transmission electron microscope
surface-conduction electron-emitter display: a flat panel display technology that uses surface conduction electron emitters to provide electrons for every pixel. The electrons strike coloured phosphors to produce a colour image. In a general sense, an SED consists of a matrix of cathode ray tubes, each tube producing a single pixel
three-center two-electron bond: Any of several forms of extended covalent bond, deficient in one electron, joining three atoms
transmission electron diffraction: A type of electron diffraction in which a beam of electrons is transmitted through a thin layer of sample
transmission electron microscope: A form of electron microscope in which a beam of electrons is transmitted through a thin layer of sample
transmission electron microscopes: plural form of transmission electron microscope
transmission electron microscopy: A form of electron microscopy in which a beam of electrons is transmitted through a thin layer of sample
unpaired electron: An electron, in an atomic orbital, for which there is no other electron in the same orbital but with opposite spin; a characteristic of free radicals and other reactive species
valence electron: any of the electrons in the outermost shell of an atom; capable of forming bonds with other atoms
field electron emission: (Elektrik, Elektronik) Field electron emission (FE) (also known as field emission and - in some contexts - electron field emission) is a phenomenon involving the electric field induced emission of electrons from the surface of a condensed material (either solid or liquid), into vacuum or into another material. This second material may be a gas, a liquid, or a non-metallic solid with low electrical conductivity. FE occurs at surface locations where the local surface electric field is particularly high. To generate significant amounts of emission, fields of 1 volt per nanometre (1 V/nm, or 1 000 000 000 volts per metre) or more are required. The exact field needed depends both on the nature of the materials involved and on the amount of electron current being generated. No external stimulation (in particular, no heating) is needed
scanning electron microscopy: (Bilim, İlim) The scanning electron microscope (SEM) is a type of electron microscope that creates various images by focusing a high energy beam of electrons onto the surface of a sample and detecting signals from the interaction of the incident electrons with the sample's surface
An electron: corpuscle
bound electron: electron which is bound to a proton and neutron in certain atoms
charge of electron: negative electrical charge of an electron
electrons: invisible, negatively charged particles which orbit the nucleus of an atom
electrons: the negatively charged particles of an atom that orbit the nucleus; determine the chemical nature of the element
electrons: A negative charged particle that orbits the nucleus of an atom It is lighter in weight than a proton or neutron
electrons: plural of electron
electrons: negatively charged particles found in atoms
electrons: Negatively charged building blocks of an atom that circle around the nucleus
electrons: Negatively-charged particles surrounding atomic nuclei
electrons: An elementary particle carrying a negative charge A constituent of all atoms The charge carriers in conductors
electrons: – small, negatively charged atomic particles
electrons: Negatively charged particles orbiting the nucleus of a molecule
free electron: electron that is not attached to an atom or ion or molecule but is free to move under the influence of an electric field
free electron: electron that is detached from the atom
lone electron: single electron, only electron
mass of the electron: weight of an electron (9.108 x 10^ (-31) kilograms
outer shell electron: electron that is located in the shell located farthest from the atomic nucleus
secondary electron: An electron produced in secondary emission
valence electron: An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms
valence electron: an electron in the outer shell of an atom which can combine with other atoms to form molecules
valence electron: electron in the outermost shell of an atom that participates in chemical bonding

Turkish - English

Definition of electron in Turkish English dictionary
milyon electron volt: (Çevre) million electron volt

electron

Hyphenation

e·lec·tron

Turkish pronunciation

îlekträn

Pronunciation

/əˈlekträn/ /ɪˈlɛktrɑːn/

Etymology

[ i-'lek-"trän ] (noun.) 1891. From Ancient Greek ἤλεκτρον (elektron, “amber”) from έλ- (el-, “sun, bright, shiny”). See also electric + -on.

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... negative charge, the positron, or anti-electron, has positive charge. This means that you ...

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electron

Definition of electron in English Turkish dictionary

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Definition of electron in English English dictionary

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Definition of electron in Turkish English dictionary

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Etymology

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