Anion

see also: Etymology of Anion

A anion (of the Greek ana- : “in top” and ion : “which goes”) is a Ion which, having collected one or more electron (S), carries one or more load (S) electric (S) negative (S). It thus is called because it is attracted, during an electrolysis , by the named positive electrode Anode, in the same way that the poles of opposite loads of the Aimant S attract each other.

Because of strong the Polarity of its molecule, the Eau is an excellent solvent of the ions. The only anion present in pure water is the ion Hydroxyde (OH^-), resulting from the Autoprotolyse. The principal inorganic anions are the Carbonate (CO₃^2-), the hydrogénocarbonate or Bicarbonate (HCO₃^-), the Sulfate (SO₄^2-), the Nitrate (NO₃^-), the Dihydrogénophosphate (H₂PO₄^-), the Hydrogénophosphate (HPO₄^2-) and the Phosphate (PO₄^3-).

The perhaps monoatomic anion, the such ion Chloride (Cl^-), or polyatomic, the such ion Nitrite (NO₂^-). It can be inorganic, like the ions quoted previously, or organic, like the ion Acétate (CH₃COO^-).

See too

Ion
Cation
Electrolysis

Simple: Anion

Random links: