Copper

One of the best elements.

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Properties

Copper has a atomic mass of 63.546 amu. An atomic radius of 128 pm. Its density is 8.96 g/cm3. It melts at 1084.62 degrees Celsius, 1984.32 degrees Fahrenheit, and 1357.77 degrees Celsius. Can boil at 2560 degrees Celsius, 4640 degrees Fahrenheit, and 2833 degrees Celsius. Becomes a solid at room temperature. It appears as a reddish gold metal. Its conductivity level is (AR) 3d10451. It does have the ability of malleability. It is rated 3 on the hardness scale. Can be formed into a coin and many other objects.

Chemical properties

When lit on fire, it turns the flame colors to green. Is low in reactivity.

Identity Information

Atomic number 29. Mass 63.546 amu. Total protons 29. Posses 35 neutrons. 29 electrons. Is located on the perodic table on fourth row, near the right in the middle section.

History

First discovered in 9000 BC. Found at Keweenaw Peninsula near Lake Superior in Michigan. The person to discover it was known in ancient times. There was no need for copper until it was discovered.

Isotopes and Compounds

Its isotopes are copper 63 and copper 65. Copper and tin can make bronze. Copper and zinc can make brass.
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Uses

All U.S. coins are copper alloys. Is in gun metals. Mostly used in electrical equipment. Also used to make statues.

Fun Facts

The name copper comes from the Latin word cuprum, meaning island of Cyprus. Most copper was mined there. A adult human needs about 1.2 milligrams of copper a day. It is the oldest element to be discovered. The Liberty Bell is 70% copper.

Work Cited

Royal Society of Chemistry