By: Gerald Howse
5th Hour
1-31-1
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 goldproducing areas for much
of history.
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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 Ω
Thermal: 3.17 W/cmK
Electron Configuration: 1s2 2s2p6
3s2p6d10 4s2p6d10f14 5s2p6d10 6s1
Electron Dot Formula: Au
.
Information
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Type of Ion: Cat ion
Oxidation States: 3 , 1
Valence Electron: 1
Atomic Number:79
Group: 11
Period: 6
Transition Metal
Isotopes: 18
Gold - Au
Occurrences
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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)
Heath Benefits
Gold Salt have antiinflammatory 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)
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Reactions
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Pure metallic
(elemental) gold is
non-toxic and nonirritating when
ingested
Gold is chemically
unreactive and exists
in nature in its pure
form.
Problems
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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
Price
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There is really no set
price, the price of
gold fluctuates and
continues to change
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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
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)
•
Symbolism
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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)
Represents
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Power
Strength
Wealth
Warmth
Happiness
Love
Hope
Optimism
Symbolism of Gold
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Intelligence
Justice
Balance
Perfection
Summer
Harvest
Sun
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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