It is a good conductor of heat and electricity, and is unaffected by air and most reagents. It is a soft metal and is usually alloyed to give it more strength. It is the most malleable and ductile metal 1 ounce (28 g) of gold can be beaten out to 300 square feet. Gold is metallic, with a yellow colour when in a mass, but when finely divided it may be black, ruby, or purple. Gold - Au Chemical properties of gold - Health effects of gold - Environmental effects of gold
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