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Word Count: 737
Gold nothing can compare to this precious metal A symbol of wealth and prosperity it has been a value for explorers and adventurers and a lure for conquerors Today it is vital to commerce and finance popular in ornamentation and increasing importance in technology The nature of gold is diverse The chemical element gold is a heavy soft metal It weighs nearly twice as much as lead Shiny and deep yellow in color gold is one of two metals which are not gray or white when pure Gold is the most ductile of metals Properties of gold are Symbol - Au Atomic Number 79 Atomic Weight 196967 Electron Configuration - -32-18-1 Group in Periodic Table 1B Density at 68 F 193 gcm3 Boiling Point 53708 F Melting Point 19454 F Number of ProtonsElectrons 79 Number of Neutrons 118 Classification Transition Metal Crystal Structure Cubic Facts Date of Discovery Circa 3000 BC Discover Unknown Name of Origin From the Old English word geolo yellow Symbol Origin From the Latin word aurum gold Uses electronics jewelry coins Obtained From crust of the earth copper ores Atomic and Chemical Properties In its usual state atomic mass number 197 gold is stable However there are radioactive unstable isotopes of mass number 186 to 196 and 198 to 203 Gold normally exhibits a chemical valence of one or three Gold is the noblest of the noble metals gold platinum palladium and rhodium so termed because of their inertness or reluctance to enter into chemical reactions Gold will not react with common acids but is attacked by a three-to-one mixture of hydrochloric and nitric acids This combination is called aqua regia because it reacts with the so-called royal metal Gold will not combine directly with oxygen but oxides may be formed indirectly Gold will also combine with
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