Zinc

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Basic Information

Symbol-Zn

Atomic Number-30

Atomic Weight-65.38

Group-12

Period-4

Color-Bluish Grey(Pale)

Classification-Metal

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History

Zinc dates far back into ancient history. In ancient Palestine, they used it in their brass. It was also found in an alloy in anicent Transylvania. Melting zinc with copper was disovered by Cyprus and it was later used by the Romans. Zinc was not used in the world for a while, but it was later rediscovered in Europe.

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Uses of Zinc

The alloy brass contains 20%-45% depending on the mixture. Zinc is also used in many other alloys including Nickel Silver, typewriter metal, commercial bronze, spring brass, soft solder, and aluminum solder. Zinc is used in some metals to stop that metal from corroding.

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Biology

Without zinc, it can affect the human body by stunted growth and male sexual immaturity. Zinc is a component of insulin. Zinc is also necessary for the diet of animals and is the key component of many enzymes.

Geology

There are important zinc deposits in Australia and in North America.

Properties

Melting Point-787.15 Degrees F

Boiling Point-1665 Degrees F

Density-7140 kg m

Interesting Facts

Zinc is never naturally found as a free metal and most of the time it has to be constructed in a lab.