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6 Compounds

Auric chloride (Au Cl₃) and chlorauric acid ( HAuCl₄) are the most common compounds of gold. Although gold is a noble metal it can form many compounds

• It dissolves in Aqua regia to form the AuCl₄^- ion
• Gold halides ( F, Cl, Br, I)
• Gold chalcogenides ( O, S, Se, Te)
• Gold cluster compound s

7 Isotopes

There is only one stable isotope of gold, and 18 radioisotopes with Au-195 being the most stable with a half-life of 186 days.

8 Precautions

The human body does not absorb gold very well, thus compounds of gold are not normally very toxic. Liver and kidney damage has, however, been reported for up to 50% of arthritis patients treated with gold-containing drugs. Gold used in dentistry is widely regarded as the safest form of restorative material, as well as the most successful.

9 References

• Los Alamos National Laboratory – Gold

10 External links

• WebElements.com – Gold
• EnvironmentalChemistry.com – Gold
• Mineral Galleries - Native Gold
• Gold prices and economy
• Facts, figures and arguments for gold bugs!

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