Definitions for divalentdaɪˈveɪ lənt
This page provides all possible meanings and translations of the word divalent
having a valence of two or having two valences
Having a valence of two.
having two units of combining power; bivalent. Cf. Valence
Origin: [Pref. di- + L. valens, valentis, p. pr. See Valence.]
In chemistry, a divalent ion or molecule has a valence of two and thus can form two bonds with other ions or molecules. Divalent anions are atoms or radicals with two additional electrons when compared to their elemental state. For instance, S2– is the sulfide anion. A divalent cation is missing two electrons as compared with the neutral atom. For instance, iron or Fe2+ is the divalent cationic form of iron. Divalent cations are present in abundance in hard water, for example, calcium and magnesium. These ionic minerals in solution are what contribute to the properties of water which cause it to be hard, such as the formation of limescale.
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