Zinc

Matthew Stafford

Big image

Zinc

Symbol: Zn\

Atomic number 30

Atomic weight 65.38

Group number 12

Period 4

Color bluish grey

History

Zinc was found in Germany in 1764 by Andreas Marggraf

Zinc was also found in prehistoric ruins in Transylvania

The smelting of zinc ores with copper was discovered in Cyprus and then used by the romans

Uses

Used in:

Galvanized metal

dry batteries

brass

lightweight coins

ointments for medical purposes

insulin

Properties

Density 7.11g /cm

Melting point 420 degrees celcius

Boiling point 907 degrees celcius

Biology

Found in insulin and used to treat diabetes

zinc is used in ointments to treat skin conditons

Interesting facts

Zinc is essential to diets of plants an animals.

Zinc deficiency results in stunted growth

The penny is made of 97.5% zinc