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Au ( Emas)
Gold has the highest malleability and ductility of any element. It is unaffected by air, water, all acids except aqua regia, and alkalis. It is a good conductor of heat and electricity. It is also a good reflector of infra-red radiation, and as it is inert makes an excellent coating for space satellites.
Nama lain (trademark, branding etc.)
Aurum, Zlato, Zlato, Or, Gold - s, Oro, Gull, Ouro, Золото, Guld
Spesifikasi ProdukOverview of Gold Atomic Number 79 Group 11 Period 6 Series Transition Metals Relative Atomic Mass (12C=12.000) 196.97 Melting Point: 1337.73K 1064.58°C 1948.24°F Boiling Point: 3080K 2807°C 5085°F Density/kg m-3 19320 (293K) Ground State Electron Configuration [Xe]4f145d106s1 Electron Affinity(M-M-)/kJ mol-1 -223 Discovery Year: Unknown Name Origin: Gold from old English word geolo (yellow) Au from Latin: aurum (gold).
Very malleable. Used in electronics, jewelry dental crowns and coins. Supposedly around half of the world's supply of gold is stored in the United States Treasury Department's gold depository in Fort Knox Kentucky, which is considered to be one of the most secure buildings in the world.
Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with a bright yellow color and luster that is considered attractive, which is maintained without tarnishing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains in rocks, in veins and in alluvial deposits. Less commonly, it occurs in minerals as gold compounds, usually with tellurium.
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