10/26/09

Zinc (ZN)

Color: Silvery
Phase: Solid @ 25 degree celcius
Melting point: 419.58 degree celcius
Boiling point: 907 degree celcius
Density: 7.14 g/cm3
Protons= 30
Neutrons= 35
Electrons= 30
Atomic number = 30
Atomic mass= 65.38

Background: (Where does this element come from?Who discovered?When?)
This element was known in Asia, more specifically from China and India about 500 B.C., but it was introduce in europe by Swiss physician Paracelsus.
Uses for Zinc?
Zinc is used fro galvanizing other metals. Galvanizing is the process of layer of Zinc on the surface of the second metal. Zinc doesn't rust easily as other metals from corrosin.



By: Rang Chun




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