text: Monatomic cations are named by taking the element name and following it with the charge in brackets e.g
  *  sodium(1+)
  *  chromium(3+)
  Sometimes an abbreviated form of the element name has to be taken, e.g. germide for germanium as germanide refers to .
  Polyatomic cations of the same element are named as the element name preceded by di-, tri-, etc., e.g.:
  *  dimercury(2+)
  Polyatomic cations made up of different elements are named either substitutively or additively, e.g.:
  *  phosphanium
  *  tetrafluorostibanium (substitutive) or tetrafluoridoantimony(1+)
  * Note that ammonium and oxonium are acceptable names for  and  respectively. (Hydronium is not an acceptable name for )