What is Gold?

1
What is Gold?

• By Julia Ugras

2
What Are Elements?

• Definition An element is a specific type of
  atom.
• I will be presenting the atomic structure,
  history and importance of Gold.

3
Golds Atom
Shell O
Electrons (-)
Shell K
Shell P
Shell L
Protons 79 Neutrons 119
Nucleus
Shell M
Shell N
4
What is the Structure of Gold?

• A gold colored metal, has six shells
• 79 Protons, 79 Electrons and 119 Neutrons
• Atomic Weight 197amu
• Atomic Number 79
• Symbol Au

5
What is the History of Gold?

• No one is attributed to discovering Gold
• Believed to be discovered in 3,000 BC
• ( age of Egyptians)
• Is over 5,011 years old
• Oldest Gold jewelry is from 700 BC

6
Why is Gold Important?

• Jewelry
• Electric Conductors
• Dentistry
• Decoration
• Bowls
• Vases
• Electronics

7
Interesting Facts

• Two thirds of the Earths Gold is found in South
  Africa
• Two thirds of the United States Gold supply comes
  from South Dakota and Nevada
• One ounce of Gold can be beaten down to 300
  square feet
• Gold can be kept captive inside rocks

8
Conclusion

• I learned lots of interesting information about
  Gold
• Three main things that interested me
• Gold is from the Earths crust
• Amount of neutrons (119) Gold contains
• Gold is over 5,011 years old
• Gold is a very interesting and important element

9
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.