Transcript Copper (Cu) - mr-ippolito-science

Copper (Cu)
By: Kerri King, Denise
Gettermann and Heather
Castrillon
Qu i c k T i m e ™ a n d a
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Discovery of Copper
• There is no known discoverer of Copper.
• People have been using Copper for at least
11,000 years.
• Cuprum is the word for copper in Latin
because they used to mine their copper from
the island of Cyprus
• About 7,000 years ago people began to find
ways to extract copper from its ores
Characteristics of Copper
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Transition Metal
Atomic Number: 29
Atomic Weight: 63.546
Melting Point 1357.77K(1084.62C or 1984.32F)
Boiling Point 2835 K ( 2562C or 4644F)
Density: 8.933 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Metal
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Characteristics (continued)
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Period Number: 4
Group Number: 11
Ionization Energy: 7.726 eV
Oxidation States: +2, +1
Number of stable Isotopes: 2
Estimated Crustal Abundance:6.0×10-1 milligrams per kilogram
Estimated Oceanic Abundance: 2.5×10-4 milligrams per liter
It is a reddish-colored metal
Has a high electrical and thermal conductivity
Source of Copper
• Copper is found in places such as the
United States, Chile, Zambia, Peru,
Canada and Great Britain
• Mines
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Uses of Copper
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Copper is used for various reasons. These reasons include:
– Making pipes
– Making jewelry
– Electrical conductor
– coins
Pure Copper is often to soft to be used.
About 5,000 years ago, people began to realize that it is stronger if
it is mixed with other elements.
Alloys of copper commonly used are
– Bronze
– Brass
Uses of Copper continued)
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Household Products:
– Doorknobs
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– Roofing
– Gutters
– Cookware-- frying pans
– Flatware (knifes, forks, spoons)
– Sterling silver always has a percentage of copper
Coins
– American pennies are coated with copper but made from zinc (.8%
copper, 99.2% zinc)
– U.S. nickels 75% copper ( 25% nickel) by weight
– U.S. dimes and quarters are 91.67% copper and 8.33% nickel by
weight
Electron Configuration
• 1s2
2s22p6
3s23p63d10
4s1
Bohr- Rutherford Diagram of
Copper
Atomic Structure
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