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n. A negatively charged ion, especially the ion that migrates to an anode in electrolysis.

n. An negatively charged ion.

n. An electro-negative atom or group of atoms, or the element which, in electro-chemical decompositions, is evolved at the anode; -- opposed to cation.

n. In electricity, a term applied by Faraday to that element of an electrolyte which in electrochemical decompositions appears at the positive pole, or anode, as oxygen or chlorine.

n. a negatively charged ion

"The chemical conditions that define acidity are that acid anion concentrations (sulfate, nitrate, organic acids) are present in excess of concentrations of base cations (typically calcium or magnesium), the products of mineral weathering reactions that neutralize acidity in soil or rock."

ion   

cation   

cation   

hydroxyl ion    hydroxide ion    superoxide    superoxide anion   

anions    cation    carbocation    ion    scraped-surface    adduct    trisulfide    ester    benzyl