Zinc

Located at Group 12 and Period 4 is another transition metal. This is Zinc.

The element zinc was discovered in Germany in 1746 by Andrea Marggraf by heating calamine with charcoal.Although Zinc compounds have been used for at least 2,500 years in the production of brass, zinc wasn't recognized as a distinct element until much later. Metallic zinc was first produced in India sometime in the 1400s by heating the mineral calamine with wool.  Today, must zinc is produced through the electrolysis  of aqueos zinc sulfate

Zinc Sulphate

Roughly one third of all metallic zinc produced today is used in a process known as galvanization. During galvanization, an object that is subject to corrosion, such as an iron nail, is given a protective coating of zinc. The zinc can be applied to an object by dipping it in a  pool of molten zinc, but it is most often applied through an electroplating process. Sacrificial zinc anodes are used in cathodic protection systems to protect exposed iron from corrosion. Metallic zinc is also used make to dry cell batteries, roof cladding and die castings

Atomic number:30

Element name: Zinc

Element Latin name: Zincum

Electrons per shell: [2, 8 , 18 , 2]
Density:7.14 g/cm3

Discoverer: Andreas Marggraf

Isolator: 64, 66, 67, 68, 70
Melting Point:419.53 celsius, 787.15 fahrenheit
Boiling Point: 907 celsius, 1665 fahrenheit

Element atomic mass:65.38 u

Chemical properties:
Isotopes : Zinc- 66: protons: 30
neutrons:36

Zinc - 66

electrons 30
( Half Life : Stable )
Zinc - 67:protons:30
neutrons:37
electrons:30
( Half Life : Stable )
Zinc - 68:protons:30
neutrons:38
electrons:30

( Half Life : Stable )

Does not react with nitrogen

cov­ered with a dull gray coat­ing (zinc ox­ide)

Zinc also re­acts with oth­er sub­stances: halo­gens, oxy­gen, chalco­gens,
al­ka­lis, acids, ammonium and ammonia salts

Zinc Oxide

Physical properties:

Good heat conductor 

Malleable 

conductor of electricity
Electron per shell: 2, 8 , 18 , 2

Where did it get its name:

German alchemist name Paracelsus named the metal zinc. It either
comes from the German word "zinke" meaning spiked

Uses:

• Zinc is used by some people to help with the common cold or

lung infections, malaria, or asthma. It may help with wound

healing, ulcers, acne and skin infection.

• Melted zinc is used to prevent iron from rusting, because it is

more reactive than iron. This process is called "Galvanizing" .

Galvanizing

How is it discovered?:

Zinc was rediscovered by Andreas Sigismund Marggraf in 1746 by
heating calamine with charcoal.

How is it isolated?:

 These are roasted in industrial plants to form zinc oxide, ZnO.

How is it isolated today?:

reduced with carbon to form zinc metal, but in practice ingenious
technology is required to ensure that the resulting Zinc doesn't contain
oxide impurities

THIS IS THE END OF ZINC

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