Zinc | Name | Zinc | | Symbol | Zn | | Atomic Number | 30 | | Atomic Mass | 65.39 atomic mass units | | Number of Protons | 30 | | Number of Neutrons | 35 | | Number of Electrons | 30 | | Melting Point | 419.58° C | | Boiling Point | 907.0° C | | Density | 7.133 grams per cubic centimeter | | Normal Phase | Solid | | Family | Transition Metals | | Period | 4 | | Cost | Not Available | | Origin of Name | From the German word zin, meaning tin | | Date and Place of Discovery | In 1746 in Germany | | Discovered by | Andreas Sigismund Marggraf | | Common Compounds | - Zinc acetate [Zn(O2CCH3)2]
- Zinc bromine (ZnBr2)
- Zinc chloride (ZnCl2)
- Zinc hydroxide [Zn(OH)2]
- Zinc oxide (ZnO)
- Zinc peroxide (ZnO2)
- Zinc phosphate [Zn3(PO4)2]
- Zinc phosphide (Zn3P2)
- Zinc selenide (ZnSe)
- Zinc sulfate (ZnSO4)
| | Interesting facts | - It is found in many forms: dust, foil, granules, powder, shot, and a mossy form.
- There are zinc mines all over the world. The largest producers are Australia, Canada, China, Peru and the U.S.A.
- Its greatest use is in the production of brass.
- It tarnishes in moist air and will burn when exposed to air.
- Humans can suffer from zinc deficiency.
- Signs of zinc deficiency are loss of hair, skin lesions, and diarrhea and it can end in death.
| | Common Uses | - Galvanized steel
- Alloys such as brass, silver, typewriter metal
- American coins
- Die casting
- Battery containers
- Pipe organs
- Water colors and paints
- Rubber industry
- Protection against sunburn and windburn, and diaper rash
- Deodorants
- Wood preservatives
- Items that glow in the dark
- Calamine lotion
- Dietary supplement
- Throat lozenges and cold therapy
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