1. Gold

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  2. About Gold

    −1, 1, 2, 3, 4, 5
    (amphoteric oxide)
    2.54
    890.1 | 1980
    135
    174
    144
    166
    color1=#ffc0c0 | color2=black
    diamagnetic
    22.14 n
    318
    14.2
    (hard-drawn)
    2030
    78
    0.00157
    27
    220
    0.44
    2.5
    216
    ? 2450
    7440-57-5
    color1=#ffc0c0 | color2=black
    {{Elementbox_isotopes_decay | mn=195 | sym=Au
    | na=syn | hl=186.10 d
    | dm=ε | de=0.227 | pn=195 | ps=Pt }}
    {{Elementbox_isotopes_decay2 | mn=196 | sym=Au
    | na=syn | hl=6.183 d
    | dm1=ε | de1=1.506 | pn1=196 | ps1=Pt
    | dm2=β- | de2=0.686 | pn2=196 | ps2=Hg }}
    mn=197 | sym=Au | na=100% | n=118
    {{Elementbox_isotopes_decay | mn=198 | sym=Au
    | na=syn | hl=2.69517 d
    | dm=β- | de=1.372 | pn=198 | ps=Hg }}
    {{Elementbox_isotopes_decay | mn=199 | sym=Au
    | na=syn | hl=3.169 d
    | dm=β- | de=0.453 | pn=199 | ps=Hg }}
    {{Elementbox_isotopes_end}}
    color1=#ffc0c0 | color2=black

    the metal|the color|Gold (color)||

    Gold (ˈɡoʊld) is a chemical element with the symbol Au (from the Latin aurum, meaning shining dawn) and atomic number 79. It is a highly sought-after precious metal which, for many centuries, has been used as money, a store of value and in jewelry. The metal occurs as nuggets or grains in rocks, underground "veins" and in alluvial deposits. It is one of the coinage metals. Gold is dense, soft, shiny and the most malleable and ductile of the known metals. Pure gold has a bright yellow color traditionally considered attractive.

    Gold formed the basis for the gold standard used before the fiat currency monetary system was employed by the International Monetary Fund (IMF) and the Bank for International Settlements (BIS). It is specifically against IMF regulations to base any currency against gold for all IMF member states. The ISO currency code of gold bullion is XAU.

    Modern industrial uses include dentistry and electronics, where gold has traditionally found use because of its good resistance to oxidative corrosion.

    Chemically, gold is a trivalent and univalent transition metal. Gold does not react with most chemicals, but is attacked by chlorine, fluorine, aqua regia and cyanide. Gold dissolves in mercury, forming amalgam alloys, but does not react with it. Gold is insoluble in nitric acid, which will dissolve silver and base metals, and this is the basis of the gold refining technique known as "inquartation and parting". Nitric acid has long been used to confirm the presence of gold in items, and this is the origin of the colloquial term "acid test," referring to a gold standard test for genuine value.

  3. Quotes about Gold

    1. There's certainly a gold rush of speculation, kind of like 1849, when everyone was rushing with their picks and shovels and finding opportunities.
      Steve Jurvetson in Green Energy Investment Frenzy
    2. I would rather wear jewellery pieces made of material other than gold which does not make me look too glitzy.
      In Why Indian women love Silver, not Gold
    3. If the designs on silver jewellery were imitated on gold, I would have definitely bought gold jewellery
      In Why Indian women love Silver, not Gold