Chemical Elements.com - Gold (Au)
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Basic Information
Name: Gold
Symbol: Au
Atomic Number: 79
Atomic Mass: 196.96655 amu
Melting Point: 1064.43 °C (1337.5801 K, 1947.9741 °F)
Boiling Point: 2807.0 °C (3080.15 K, 5084.6 °F)
Number of Protons/Electrons: 79
Number of Neutrons: 118
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 19.32 g/cm3
Color: Gold
Atomic Structure
Number of Energy Levels: 6
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 32
Fifth Energy Level: 18
Sixth Energy Level: 1
Isotopes Isotope
Half Life
Au-1941.6 days
Au-195186.1 days
Au-195m30.5 seconds
Au-1966.2 days
Au-197Stable
Au-1982.7 days
Au-1993.14 days
Facts
Date of Discovery: circa 3000 BC
Discoverer: Unknown
Name Origin: From the Old English word geolo (yellow)
Symbol Origin: From the Latin word aurum (gold)
Uses: electronics, jewelry, coins
Obtained From: crust of the earth, copper ores
Related Links
Note: The external links below are not a part of this site and their content is not the responsibility of this site
World Gold Council
Primarily about commercial uses of gold, but also includes other information
The Gold Institute
Contains an ",www.forwowgold.org;Introduction to Tungsten", among other things If you know of any other links for Gold, please let me know
MLA Format for Citing This Page
Bentor, Yinon. Chemical Element.com - Gold. <http://www.chemicalelements.com/elements/au.html>.
For more information about citing online sources, please visit the MLA’s Website.
This page was created by Yinon Bentor.
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Copyright © 1996-2009 Yinon Bentor. All Rights Reserved.
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