CO OZNACZA SŁOWO ELECTRON AFFINITY
Powinowactwo elektronowe
W chemii i fizyce atomowej powinowactwo atomu atomu lub cząsteczki elektronu jest definiowane jako ilość energii uwalnianej, gdy elektron jest dodawany do neutralnego atomu lub cząsteczki w stanie gazowym, tworząc ujemny jon. X + e- → X- + energia W fizyce ciała stałego powinowactwo elektronów do powierzchni jest nieco inaczej określone.
Definicja słowa electron affinity w słowniku
Definicja powinowactwa elektronowego w słowniku jest miarą zdolności atomu lub cząsteczki do tworzenia jonów ujemnych, wyrażoną jako energia uwalniana, gdy elektron jest przyłączony A.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «ELECTRON AFFINITY»
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electron affinity w następujących pozycjach bibliograficznych Książki powiązane ze słowem
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1
Chemistry: Principles and Practice
The electron affinity of an element is the energy change when an electron is
added to a gaseous atom to form an anion. ⎯⎯→ A (g) ⎯⎯→ F(g) [He]2s22p6 [Ne
] A(g) e Figure 8.16 gives representative values of electron affinities.1 The
elements ...
Daniel Reger, Scott Goode, David Ball,
2009
2
Chemistry and Chemical Reactivity, Enhanced Edition
The value of electron affinity usually becomes less negative on descending a
group of the periodic table. Electrons are added increasingly farther from the
nucleus, so the attractive force between the nucleus and electrons decreases.
John Kotz, Paul Treichel, John Townsend,
2009
3
Competition Science Vision
Electron affinity — The amount of energy released when an electron is added to
a neutral atom to form an anion. The first electron affinity is always exothermic i.e.
negative, the second electron affinity of same element will be positive or ...
4
Properties, Growth and Applications of Diamond
J. Ristein March 2000 A INTRODUCTION The electron affinity x of a solid is
defined as the energy gained when an additional electron is brought out of the
vacuum into the material. Within the single electron approximation on which the
band ...
A. J. Neves, Maria Helena Nazaré,
2001
5
The
Electron Capture Detector and The Study of Reactions ...
Related procedures for estimating electron affinities make use of the concept of
electronegativity (EN). These use the Mulliken [33] definition of ''absolute''
electronegativity, the average of the first ionization potential and the first electron
affinity, ...
E. C. M. Chen, E. S. D. Chen,
2004
6
GaAs and Related Materials: Bulk Semiconducting and ...
(a) Electron Affinity Rule The conduction and valence bands of III-V compounds
can be well characterized by electron orbitals of the group-Ill and group-V atoms,
respectively. We have already shown in Fig. 7.10 that there is an increase in the ...
7
Chemistry: The Practical Science
Video Lesson: Electron Affinity 7.7 Electron Affinity Our look at ionization
energies concerned the energy required to generate positive ions (cations) from
neutral atoms. The other side of the “ionization coin” is the generation of negative
ions ...
Paul B. Kelter, Michael D. Mosher, Andrew Scott,
2008
Figure 12.36 The electron affinity values for atoms among the first 20 elements
that form stable, isolated X2 ions. The lines shown connect adjacent elements.
The absence of a line indicates missing elements (He, Be, N, Ne, Mg, and Ar)
whose ...
Steven Zumdahl, Donald J. DeCoste,
2012
9
Competition Science Vision
Exceptional values of electron affinity The atomic size of fluorine is smaller than
that of chlorine even then the electron affinity of fluorine is lower than that of
chlorine. This fact can be explained by a simple mechanism. It is due to small
size of ...
Electron affinity and negative electron affinity The electron affinity of a
semiconductor is defined as the energy required to remove an electron from the
conduction band minimum to a distance macroscopically far from the
semiconductor (i.e. ...
A. Paoletti, A. Tucciarone, Società italiana di fisica,
1997
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «ELECTRON AFFINITY»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
electron affinity w wiadomościach.
Scaling for quantum tunneling current in nano- and subnano-scale …
The effects of anode emission and material properties (i.e. work function of the electrodes, electron affinity and permittivity of the insulator) are ... «Nature.com, Maj 15»
Potent potassium
... into complex-bound K+ and K− counter ions, demonstrating a small but significant electron affinity of this very electropositive element. «Nature.com, Kwi 15»
Boron-based atomic clusters mimic rare-earth metals
Using photoelectron spectroscopy, Cheng et al. found that LaB adiabatic ionization energy (ADE, also the electron affinity) measurement was ... «Phys.Org, Kwi 15»
Ongoing hydrothermal activities within Enceladus
It has a higher ionization potential and higher electron affinity, which lead to simultaneous formation of anions, cations and neutrals in the ... «Nature.com, Mar 15»
Buckyball insulation additive reduces electricity transmission losses
Fullerenes have a very high electron affinity and absorb these high-energy electrons before they can do any damage, hence the breakdown ... «The Engineer, Lut 15»
Distinguished Professor Carl Lineberger honored by National …
Lineberger developed negative ion photoelectron spectroscopy, which scientists can use to determine the electron affinity of the neutral version ... «CU Boulder News & Events, Sty 15»
Fluorination Remains Key Challenge in API Synthesis
Due to its high ionization potential, electron affinity, and electronegativity, fluorine is a highly electron withdrawing substituent. In addition, fluorine-carbon bonds ... «Pharmaceutical Technology Magazine, Paz 14»
Boron nitride diamondoids as nanoscale building blocks
They are strong candidates in nanoelectronic applications due to their very small size and properties such as negative electron affinity and ... «nanotechweb.org, Sie 14»
One-pot synthesis transforms ubiquitous hydrocarbons into electron …
The subsequent gas phase study elucidates a close correspondence among electron affinity, number of added CF3 groups, and PAH ... «Phys.Org, Lut 14»
The Introduction Of The Apple Macintosh In 1984 Changed My Life
... of the periodic table showing a single property (commonly used to illustrate the periodic nature of electron affinity). I had to ask a lot of friends ... «Business Insider, Sty 14»