By Robbie Krusen

What Are Elements? Definition: a specific type of atom I will be presenting the structure, history, and importance of zinc.

Zinc’s Atom P = 30 N M L K N = 35 Shell K – 2 Shell L – 8 Shell M – 18 Shell N - 2

What is the Structure of Zinc? Nucleus in the center that contains the protons & neutrons Shells are an invisible path electrons travel around. Zinc has 4 shells Zinc has 30 protons, 35 neutrons, and 30 electrons Atomic weight is 65 Atomic number is 30 The Symbol for Zinc is ZN

What is the History of Zinc? Founded in 1746 Founder is Andreas Marggraf Discovered by heating calamine with charcoal Discovered and rediscovered in Europe

Why is Zinc Important? Uses melting coating, rust protection ,brass, bronze, nickel die casting which are used by automotive, electrical, and hardware Found in x-rays, TV screens, fluorescent lights, paints, rubber, cosmetics, pharmaceuticals, floor coverings and plastic Lastly zinc is important for human growth

Interesting Facts Very toxic Roughly 70 cents/lb. in 1990 Zinc is important for human growth and animals White spots on your finger nails = not enough Zinc in your body Major sources of zinc are red meat, poultry, fish, seafood, cereal, and dairy products.

Conclusion I learned…… A very important metal that has many everyday uses Bluish – white metal that affects people’s health everyday Can be burned in the air at high heat and can also be melted at 420 degrees Celsius

Works Consulted "A Periodic Table of the Elements at Los Alamos National Laboratory." Web. 10 Dec. 2010. “Elements." Chemical Elements.com - An Interactive Periodic Table of the Elements. Web. 10 Dec. 2010. "Elements." Current Science. POWER Library. SIRS Discoverer. Web. 10 Dec. 2010. "It's Elemental - The Periodic Table of Elements." Science Education at Jefferson Lab. Web. 10 Dec. 2010. Knapp, Brian J., David Woodroffe, and David A. Hardy. Elements. Danbury, CT: Grolier Educational, 2000. Print. "Periodic Table - Chart of All Chemical Elements." Lenntech. Web. 10 Dec. 2010. “WebElements.” Periodic Table of the Elements. Web. 10 Dec. 2010.