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Gold at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

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

[Bohr Model of Gold]  
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


Isotope Half Life
Au-1941.6 days
Au-195186.1 days
Au-195m30.5 seconds
Au-1966.2 days
Au-1982.7 days
Au-1993.14 days


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
  1. World Gold Council
    • Primarily about commercial uses of gold, but also includes other information
  2. The Gold Institute
    • Contains an "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.

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