Gratias Ago Vos. Gratias Ago Vos. On the new statue (well, not more than a few months old) in the pond in Wizard City Commons, the inscription on the statue reads Gratias Ago Vos. By correct Latin grammar it should be Gratias Ago Vobis. Just saying.
Noun. 1. anion-a negatively charged ion. ion-a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons. hydroxide ion, hydroxyl ion-the anion OH having one oxygen and one hydrogen atom.
An anion is an atom or group of atoms that has negative charge associated with it. Common examples of anions include F-, OH-, and #SO_4^(2-)#. This is in contrast to cations, which are atoms or groups of atoms that have positive charge. Together with anions, cations form ionic compounds. OK.