Is Coppera metal 3 reasons
Answers
this question is wrong
please send right question
mark me brainliest
Answer:
Shiny, reddish copper was the first metal manipulated by humans, and it remains an important metal in industry today.
The oldest metal object found in the Middle East consists of copper; it was a tiny awl dating back as far as 5100 B.C. And the U.S. penny was originally made of pure copper (although, nowadays, it is 97.5 percent zinc with a thin copper skin).
Copper ranks as the third-most-consumed industrial metal in the world, after iron and aluminum, according to the U.S. Geological Survey (USGS). About three-quarters of that copper goes to make electrical wires, telecommunication cables and electronics.
Aside from gold, copper is the only metal on the periodic table whose coloring isn't naturally silver or gray.
Chemical description
Atomic number (number of protons in the nucleus): 29
Atomic symbol (on the periodic table of elements): Cu
Atomic weight (average mass of the atom): 63.55
Density: 8.92 grams per cubic centimeter
Phase at room temperature: solid
Melting point: 1,984.32 degrees Fahrenheit (1,084.62 degrees Celsius)
Boiling point: 5,301 degrees F (2,927 degrees C)
Number of isotopes (atoms of the same element with a different number of neutrons): 35; 2 stable
Most common isotopes: Cu-63 (69.15 percent natural abundance) and Cu-65 (30.85 percent natural abundance)
History and characteristics
Most copper occurs in ores and must be smelted, or extracted from its ore, for purity before it can be used. But natural chemical reactions can sometimes release native copper, according to the chemistry database site, Chemicool.
Humans have been making things from copper for at least 8,000 years and figured out how to smelt the metal by about 4500 B.C. The next technological leap was creating copper alloys by adding tin to copper, which created a harder metal than its individual parts: bronze. The technological development ushered in the Bronze Age, a period covering approximately 3300 to 1200 B.C, and isdistinguished by the use of bronze tools and weapons, according to History.
Copper artifacts are sprinkled throughout the historical record. Archaeologists discovered a tiny awl, or pointed tool, dating to 5100 B.C., that was buried with a middle-age woman in an ancient village in Israel. The awl represents the oldest metal object ever found in the Middle East. The copper probably came from the Caucasus region, located in the mountainous region covering southeastern Russia, Armenia, Azerbaijan, and Georgia more than 600 miles (1,000 kilometers) away, according to 2014 article published in PLOS ONE. In ancient Egypt, people used copper alloys to make jewelry, including toe rings. Researchers have also found massive copper mines from the 10th century B.C. in Israel.
About two-thirds of the copper on Earth is found in igneous (volcanic) rocks, and about one-quarter occurs in sedimentary rocks, according to the USGS. The metal is ductile and malleable, and conducts heat and electricity well — reasons why copper is widely used in electronics and wiring.
Copper turns green because of an oxidation reaction; that is, it loses electrons when it's exposed to water and air. The resulting copper oxide is a dull green. This oxidation reaction is the reason the copper-plated Statue of Liberty is green rather than orange-red. According to the Copper Development Association, a weathered layer of copper oxide only 0.005 inches (0.127 millimeters) thick coats Lady Liberty, and the covering weighs about 80 tons (73 metric tons). The change from copper-colored to green occurred gradually and was complete by 1920, 34 years after the statue was dedicated and unveiled, according to the New York Historical Society.
I HOPE IT'S HELPS YOU