AuCl
Gold chloride
Au+ balances chloride ions.
What Is the Charge of Gold?
Gold commonly forms Au+ Au3+ in introductory ionic compounds.
Quick answer: Gold usually has a common ionic charge of +1 or +3, written as Au+ or Au3+.
| Element | Gold |
|---|---|
| Symbol | Au |
| Atomic number | 79 |
| Common ionic charge | +1, +3 |
| Common ions | Au+, Au3+ |
Why Gold has this charge
Gold is a transition metal. Transition metals can have multiple charges, so compound names and roman numerals matter.
This is a classroom reference range, not an exhaustive list of all oxidation states.
Gold charge examples
Au2O
Gold oxide
Gold can form oxides where total positive and negative charge balances.
FAQ
Is Gold charge the same as oxidation state?
Ionic charge is the charge on an actual ion. Oxidation state is a bookkeeping number used inside compounds. They can match, but they are not always the same thing.
How do I use this in formulas?
Combine positive and negative ions so the total charge is zero. You can also use the ionic compound calculator.
Where can I see the full chart?
Use the periodic table with charges or the ionic charges chart.