Zinc

Zinc
Properties
Atomic symbol	Zn
Atomic number	30
Atomic mass	65.4 amu
Other Information
Date of discovery	1746
Name of discoverer	Andreas Marggraf
Name origin	From the German word zin (meaning tin)
Uses	Metal coating, rust protection (galvanising), brass, bronze, nickel
Obtained from	Zinc blende, calamine

Zinc is a chemical element in the periodic table that has the symbol Zn and atomic number 30. In some historical and sculptural contexts, it is (or was) known as spelter.

Zinc lozenges have been claimed to lessen the duration of the common cold, but

As with more traditional over-the-counter medications, evidence that these products help reduce the duration of colds or lessen symptoms is mostly subjective, says Linda Lambert, cold and flu program director at the National Institute of Allergy and Infectious Disease.