Transcript Element Research Project (Gold2)

What
is
Gold?
By Ethan Merckx
What Are Elements?
Elements are specific types of atoms
I will be presenting the structure, history,
and importance of Gold.
Gold’s Atom
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P=79
N=118
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What is the Structure of
Gold?
Description: metal, yellow, soft
79 protons, 79 electrons, 118 neutrons
Atomic mass:169.96655
Atomic number:79
Symbol of Gold: Au
Melting point: 1064o Celsius
What is the History of
Gold?
Unknown who discovered Gold or how
they discovered it
Probably discovered in the Stone Age
Used in gold jewelry found from 4000BC in
Bulgaria
Found in gold mines
Symbol of wealth and power
Why is Gold Important?
Used in artwork and coins
Used in jewelry, gold bars and gold leaf
Used to treat cancer and arthritis
Does not rust or tarnish
Does not corrode in most acids
Conducts electricity
Interesting Facts
Worth about $1,000 an ounce
Nevada supplies the most U.S. gold
Mined in South Africa
Rarely used in pure form
Gold is edible, used to decorate cakes
Most malleable (soft) and ductile
(conductive)
Conclusion
Special element due to value and
malleability
Long been thought by man to be very
exceptional of its beauty
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.