Berber,+Keegan

ZINC 1. Zinc Zn 2. 1180 [or 907 °C (1665 °F)] K 3. 692.68 [or 419.53 °C (787.15 °F)] K 4. 7140 kg m -3 5. Protons-30. Nuetrons-35. Electrons-30 6. 65.38 7.30  8. Two in the first  Eight in the second  Sixteen in the third -- Four in the fourth

9. 2 valence electrons 10. Zinc was discovered by Andreas Marggraf in 1746 in Germany. The name Zinc came from the German word Zink. An alloy containing 85% Zinc was found in prehistoric ruins in Transylvania 11. 80% Of Zinc mines are underground and only 8% are of the open pit type and the remainder or the mines are a combination of both underground and open pit. Open pit mines produce as little as 15% and underground mines produce 64% and 21% of mine production comes from the combined underground and open pit mines.

12. Zinc ores used to make brass and other alloys during ancient times, Zinc is used on the outside of batteries. The Zinc acts as both battery electrode and container. Zinc is used in sun block, make-up, and in ointments. Also used in rubber industry, concrete manufacturing, and in plants.

13. Zinc is not only found in rock, and soil, but in air, water and the biosphere. Plants, animals and humans also contain Zinc.

14. Zinc reacts with steam to give Zinc oxide and hydrogen gas.

15. The outside of the battery

16. 4.72/1 ib

17.

18.

19. Found in carrots, and paint

Web Elements: @http://www.webelements.com/zinc/ Mark Winter 12/10/2012

Chemicool, @http://www.chemicool.com/elements/zinc.html, David D. 2012

Chemical elements, @http://www.chemicalelements.com/elements/zn.html, Yinon Benter, 12/11/2012