The ion Au3+ is called the auric ion.
Gold(III) Iodide
Au3+
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Au3+
Au3+
Au3+
Au3+
Gold is a metal, but it can form the Au3+ ion.
Formula: [Au3+][Cl-]3
Yes, gold most often forms the Au3+ ion.
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The pure gold reacts with Aqua regia (HNO3+3HCl) and forms Au3+ ion
Aqua regis (Latin: water of king) is the triviale name of the 3:1-mixture of concentrated hydrochloric acid (HCl) and nitric acid (HNO3), capable of dissolving (by oxidation) of gold, the King of metals.The first step reaction (oxidation) will only go further when followed by the 2nd step of complex forming to the tetrachloroauraat ion AuCl4-, because too much Au3+will stop the oxidation.Au(s) + 3 NO3-(aq) + 6 H+(aq) → Au3+(aq) + 3 NO2(g) + 3 H2O(l)Au3+(aq) + 4 Cl-(aq) → AuCl4-(aq)