Transcript Element Research Project (Gold3)

What is Gold?
By: Becca Riesenberger
What Are Elements?
• Definition: An Element is a specific type of
atom
• I will be presenting the structure, history,
and importance of the element gold
Gold’s Atom
P = 79
N = 118
What is the Structure of Gold?
• Description: yellow, soft, can be seen easily,
Shape it
• Number of P: 79,E: 79, N: 118
• Atomic weight:197.0
• Atomic number: 79
• Symbol: Au
What is the History of Gold?
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Who discovered it: unknown
How it was discovered: unknown
Date it was discovered: unknown
Obtained from the crust of the earth
About 2/3 of the world’s gold comes from
South Africa and 2/3 of the U.S.A’s gold
comes from South Dakota and Nevada
Why is Gold Important?
• In the past it was used by: South Americans,
Asians, South Africa, Egyptians, Greeks,
Romans and Chinese
• In the past, it was used to make jewelry and
money
• Uses: Jewelry, finance, electronics, computers,
dentistry, medical, aerospace, awards,
glassmaking, fighting cancer
Interesting Facts
• Gold was the first element known to man
• Pure gold is 24 karats
Conclusion
Gold is not only beautiful, but is has
many important uses as well. Did you ever
realize how many important uses gold has
and how many times you use gold?
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.