Electrovalent Bond definition of Electrovalent Bond in the Free Online Encyclopedia.

electrovalent bond: see chemical bond chemical bond, mechanism whereby atoms combine to form molecules. There is a chemical bond between two atoms or groups of atoms when the forces acting between them are strong enough to lead to the formation of an aggregate with sufficient stability to be regarded as
..... Click the link for more information. .

electrovalent bond [i¦lek·trō¦vā·lənt ′bänd]

(physical chemistry)

ionic bond

Electrovalent Bond

a type of chemical bond, based on electrostatic interaction between ions of opposite charge. Relatively pure bonds of this type form in alkali metal halides, such as KF, since each atom of the alkali metal has a weakly bound electron (bonding energy, about 3–5 electron volts), whereas the halogen atoms have the greatest affinity for electrons. However, even in crystals (and particularly the molecules) of these compounds, complete transfer of the electron from the metal atom to the halogen atom does not take place in most cases. The previously widely held views concerning the formation of divalent, trivalent, or tetravalent ions, such as Ca²⁺, O^2-, B³⁺, and Si⁴⁺, have not been confirmed in most cases, since here the chemical bond is formed in a more complex way. The concept of the effective ionic charge is used in estimating the degree to which a bond is electrovalent.

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			Electrostimulation Electrostriction electrostriction transducer electrostrictive strain Electrosurgery Electrosynthesis electrotaxis Electrotherapy electrothermal electrothermal ammeter electrothermal energy conversion Electrothermal Equipment, Institute of electrothermal process electrothermal propulsion electrothermal recording electrothermal voltmeter Electrothermic Treatment Electrothermics electrotinning Electrotome Electrotonus electrotropism electrotype Electrotyping electrovalence Electrovalent Bond electroviscous effect electroweak interaction electroweak theory electrowinning Electrum Elegance elegant elegant program elegiac Elegiac Distich Elegy Elegy Written in a Country Churchyard Eleja Elektra Elektrenai Elektricheskaia i Teplovoznaia Tiaga Elektricheskie Stantsii Elektrichestvo Elektrion process Elektrogorsk Elektrokhimiia Elektrokhimprom Chirchik Production Association Elektron Elektroprovod Elektrostal			electrotropism electrotype electrotype electrotyped electrotyped electrotyper electrotyper electrotypers electrotypers electrotypes electrotypes electrotypic electrotypic Electrotyping Electrotyping Electrotypy electroureterography electrovalence electrovalence electrovalence electrovalences electrovalences electrovalences electrovalencies electrovalencies electrovalency electrovalency electrovalent electrovalent electrovalent Electrovalent Bond Electrovalent bonding Electrovalent bonding electroversion electrovert electrovibratory massage electrovibratory massage electrovibratory massage electroviscous effect Electroviscous Fluids Electrovox Secure Voice Set electroweak electroweak Electroweak force Electroweak force Electroweak interaction Electroweak interaction Electroweak interactions Electroweak interactions Electroweak symmetry Electroweak symmetry Electroweak symmetry breaking Electroweak symmetry breaking Electroweak theory Electroweak theory Electrowetting Display Electrowinning Electrowon electrum electrum Electrum Piece