Periodic Table of the Elements: Gold

Name: Gold
Symbol: Au
Atomic Number: 79
Atomic Mass: 196.967
Atomic Volume: 10.20 cc/mol
Discovered By: Prehistoric
Discovery Date: Gold has been known since ancient times
Origin of Name: Gold - (Sanskrit) jval (gold)
Toxicity: Not toxic. Soluble gold salts act as irritants on the skin.
Summary: Found native and in ores. Gold is extremely malleable (1 oz. of gold can be beaten out to a sheet 300 sq. ft. in area) and ductile (1 oz. can be drawn out into a wire over 60 miles long). Gold is not corroded by air. Used in jewelry, coinage, and to give red glass its color. Gold is an excellent electrical conductor. 24 karat gold is pure. 14 karat gold is 14/24ths pure.


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© Copyright 1998 David August