| 释义 |
ionic bond
 ionic bondIn sodium chloride, a sodium atom (Na) donates an electron to a chlorine atom (Cl), forming an ionic bond.ionic bondn. A chemical bond between two ions with opposite charges, characteristic of salts. Also called electrovalent bond.ionic bond n (Chemistry) another name for electrovalent bond ion′ic bond′
n. the electrostatic bond between two ions formed through the transfer of one or more electrons. [1935–40] i·on·ic bond (ī-ŏn′ĭk) A chemical bond formed between two ions with opposite charges. Ionic bonds form when one atom gives up one or more electrons to another atom. These bonds can form between a pair of atoms or between molecules and are the type of bond found in salts. See more at bond, coordinate bond, covalent bond.Thesaurus| Noun | 1. | ionic bond - a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ionelectrostatic bond, electrovalent bondbond, chemical bond - an electrical force linking atoms |
ionic bond
ionic bond: see chemical bondchemical 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 an
..... Click the link for more information. .ionic bond[ī′än·ik ′bänd] (physical chemistry) A type of chemical bonding in which one or more electrons are transferred completely from one atom to another, thus converting the neutral atoms into electrically charged ions; these ions are approximately spherical and attract one another because of their opposite charge. Also known as electrovalent bond. ionic bond
bond [bond] the linkage between atoms or radicals of a chemical compound, or the symbol representing this linkage and indicating the number and attachment of the valencies of an atom in constitutional formulas, represented by a pair of dots or a line between atoms, e.g., H—O—H, H—C≡C—H or H:O:H, H:C:::C:H.coordinate covalent bond a covalent bond in which one of the bonded atoms furnishes both of the shared electrons.covalent bond a chemical bond between two atoms or radicals formed by the sharing of a pair (single bond), two pairs (double bond), or three pairs of electrons (triple bond).disulfide bond a strong covalent bond, —S—S—, important in linking polypeptide chains in proteins, the linkage arising as a result of the oxidation of the sulfhydryl (SH) groups of two molecules of cysteine.high-energy phosphate bond an energy-rich phosphate linkage present in adenosine triphosphate (ATP), phosphocreatine, and certain other biological molecules. On hydrolysis at pH 7 it yields about 8000 calories per mole, in contrast to the 3000 calories yielded by phosphate esters. The bond stores energy that is used to drive biochemical processes, such as the synthesis of macromolecules, contraction of muscles, and the production of the electrical potentials for nerve conduction.high-energy sulfur bond an energy-rich sulfur linkage, the most important of which occurs in the acetyl-CoA molecule, the main source of energy in fatty acid biosynthesis.hydrogen bond a weak, primarily electrostatic, bond between a hydrogen atom bound to a highly electronegative element (such as oxygen or nitrogen) in a given molecule, or part of a molecule, and a second highly electronegative atom in another molecule or in a different part of the same molecule.ionic bond a chemical bond in which electrons are transferred from one atom to another so that one bears a positive and the other a negative charge, the attraction between these opposite charges forming the bond.peptide bond the —CO—NH— linkage formed between the carboxyl group of one amino acid and the amino group of another; it is an amide linkage joining amino acids to form peptides.ion·ic bond (ī-on'ik bond) A type of chemical bond that forms between metal and non-metal ions through electrostatic attraction; the attraction between oppositely charged ions. ionic bond an electrostatic bond.FinancialSeebondionic bond
Synonyms for ionic bondnoun a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ionSynonyms- electrostatic bond
- electrovalent bond
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