divalent ion
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Divalent — In chemistry, a divalent ion or molecule has a valence of two and thus can form two bonds with other ions or molecules. An older term for divalent is bivalent.[1] Divalent anions are atoms or radicals with two additional electrons when compared… … Wikipedia
Divalent — Valence (chimie) Pour les articles homonymes, voir Valence. Ne pas confondre la valence et la couche de valence La valence d un élément chimique est le nombre maximal de liaisons chimiques qu il peut former. Ou, autrement dit, c est le… … Wikipédia en Français
ion-exchange reaction — ▪ chemical reaction Introduction any of a class of chemical reactions between two substances (each consisting of positively and negatively charged species called ions (ion)) that involves an exchange of one or more ionic components.… … Universalium
divalent — divalence, n. /duy vay leuhnt/, adj. Chem. having a valence of two, as the ferrous ion, Fe++. [1865 70; DI 1 + VALENT] * * * … Universalium
divalent — /daɪˈveɪlənt/ (say duy vayluhnt), /ˈdaɪveɪlənt/ (say duyvayluhnt) adjective having a valency of two, as the iron (II) ion, Fe++ …
DIM — divalent ion metabolism; domain information model; median infective dose [Lat. dosis infectionis media] * * * dim abbr diminished … Medical dictionary
DIM — • divalent ion metabolism; • domain information model; • median infective dose [Lat. dosis infectionis media] … Dictionary of medical acronyms & abbreviations
crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… … Universalium
Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… … Universalium
Nucleic acid tertiary structure — Example of a large catalytic RNA. The self splicing group II intron from Oceanobacillus iheyensis.[1] The tertiary structure of a nucleic acid is its precise three dimensional structure, as defined by the atomic coordinates.[2] … Wikipedia
Nobelium — mendelevium ← nobelium → lawrencium Yb ↑ No ↓ (Upb) … Wikipedia
