Gold (Au)
A precious metal that almost never reacts, so it stays shiny forever.
Gold facts
- Symbol
- Au
- Atomic number
- 79
- Atomic mass
- 196.97
- Family
- Transition metals
- Period
- 6
- Group
- 11
Famous reactions with gold
- Gold disappears! Gold meets MercuryGold amalgam · At room temperature · Try it
What does gold react with?
Gold makes a new substance with 5 other elements and chemicals in our lab:
- Gold + FluorineGold(III) fluoride 2Au + 3F₂ → 2AuF₃ · When heated · Try it
- Gold + ChlorineGold(III) chloride 2Au + 3Cl₂ → 2AuCl₃ · When heated · Try it
- Gold + BromineGold(III) bromide 2Au + 3Br₂ → 2AuBr₃ · When heated · Try it
- Gold + TelluriumGold telluride (calaverite) Au + 2Te → AuTe₂ · When heated · Try it
- Gold + IodineGold(I) iodide 2Au + I₂ → 2AuI · When heated · Try it
It also blends into a mixture, like an alloy, with 73 other metals when melted together.
Nothing happens when it's simply mixed with 19 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.