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Protons: 79 Electrons: 79 Neutrons: 118 Mass # : 197

Protons: 79 Electrons: 79 Neutrons: 118 Mass # : 197. By: Gerald Howse 5 th Hour 1-31-1. History.

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Protons: 79 Electrons: 79 Neutrons: 118 Mass # : 197

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  1. Protons: 79 Electrons: 79Neutrons: 118Mass # : 197 By: Gerald Howse 5th Hour 1-31-1

  2. History Latin Name Aurum, originally called “shining dawn.” No one can really say who discovered Gold because gold has been around for thousands of years B.C. and some say even early as prehistoric times Egypt and especially Nubia had the resources to make them major gold-producing areas for much of history.

  3. Description: Soft bright yellow transition metal. • Boiling Point: 3080K, 2807°C, 5085°F • Melting Point: 1337.73K, 1064.58°C, 1948.24°F • Density:19.32g/cc @ 300K • Conductivity: Electrical: 0.452 106/cm ΩThermal: 3.17 W/cmK • Electron Configuration: 1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d10 6s1 • Electron Dot Formula: Au . Chemical & Physical Properties

  4. Information Gold - Au • Type of Ion: Cat ion • Oxidation States: 3 , 1 • Valence Electron: 1 • Atomic Number:79 • Group: 11 • Period: 6 • Transition Metal • Isotopes: 18 Element Arum

  5. Occurrences Heath Benefits • Native gold is also found in the form of free flakes, grains or larger nuggets that have been eroded from rocks and end up in alluvial deposits (called placer deposits) • Gold Salt have anti-inflammatory properties and are used in the treatment of arthritis and other similar conditions • Inject able Gold has been proven to help to reduce the pain and swelling of rheumatoid arthritis and tuberculosis. • Gold Alloys are use in dentistry in tooth restoration(crowns & permanent bridges) “Shining Dawn”

  6. Reactions Problems • Pure metallic (elemental) gold is non-toxic and non-irritating when ingested • Gold is chemically unreactive and exists in nature in its pure form. • Gold Salt are toxic to the liver and kidneys • Rare poisoning from Potassium gold cyanide • Gold contact allergies have affected mostly women but is relatively non-potent when compared to Nickel Gold

  7. Price • There is really no set price, the price of gold fluctuates and continues to change • It depends on the karat which is how pure the gold is 24 being the fineness • Also it is weighed by 1 troy ounce = 31.1 grams worth $1340.60 Gold

  8. Uses Of Gold Jewelry Gold Flakes (food) Thread Coloring Agent (Cranberry Glass) Reflective Layer On Cds Protective Coating (Satellites) Automobiles (Heating Dissipation) Gold Toners (Photography)

  9. Symbolism Represents • Intelligence • Justice • Balance • Perfection • Summer • Harvest • Sun • Gold has been highly valued in many societies throughout the ages • Ex: Golden Medals awarded in athletic competitions and trophies (Olympic Games, Nobel Prize, & Gold Globe Awards) • Power • Strength • Wealth • Warmth • Happiness • Love • Hope • Optimism Symbolism of Gold

  10. http://environmentalchemistry.com/yogi/periodic/Au.html • http://en.wikipedia.org/wiki/Gold • www.periodictable.com • www.chemistry.about.com • www.webelements.com • Class textbook Bibliography

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