WE'VE STRUCK GOLD (Au)!

WE'VE STRUCK GOLD (Au)!!!

Zyralyn Ondayog

Thursday, September 25, 2014

Chemistry/ Period 1

Atomic Number & Atomic Mass

Name & Symbol

Atomic Number: 79

Atomic Mass: 196.96655 amu

Gold (Au)

Website: http://ameliaperiodictable.weebly.com/uploads/1/4/9/3/14935744/419123830.JPG?184

Boiling Point & Melting Point

• Greek- Aurium
• Latin- Aurum
• Name Origin:

From the Old English word geolo (yellow)

• Crystal Structure:

Cubic

• Density at 293 K:

19.32 g/cm3

Boiling Point:

2807.0 °C

(5084.6 °F)

Melting Point:

1064.43 °C

(1947.9741 °F)

Website: http://static4.businessinsider.com/image/5294ccfb69bedd832f46b35b/rosenberg-here-are-9-things-holding-back-gold.jpg

The Color of Gold

Yellow/Gold

Website: http://blogs-images.forbes.com/shuchingjeanchen/files/2014/07/gold-bars-in-fort-knox.jpg

Website: http://www.pinpros.com/wp-content/uploads/2012/10/media10.jpg

Protons, Neutrons, & Electrons

Discovery

FUN FACT!!!!

• "Gold Discovered in California

January 24, 1848

Many people in California figured gold was there, but it was James W. Marshall on January 24, 1848, who saw something shiny in Sutter Creek near Coloma, California. He had discovered gold unexpectedly while overseeing construction of a sawmill on the American River."

• Date of Discovery: circa 3000 BC
• Discoverer: Unknown

Protons: 79

Neutrons: 118

Electrons: 79

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

• Romans used gold preparations for treatment of skin lesions and sores.
• Cleopatra wore pure gold for a radiant complexion.
• Today, gold leaf is used in the treatment and rejuvenation of skin conditions.
• Many luxury spas use 24-carat gold leaf treatments to hydrate, firm and moisturize the skin, claiming reduced fine lines and wrinkles and resulting in smooth and radiant skin.

http://www.americaslibrary.gov/jb/reform/jb_reform_fortyniners_1.html

Website: http://static.ddmcdn.com/gif/intro-top-10-panning.jpg

Website: http://www.chemicalelements.com/elements/au.html

The Use of Gold

Website: http://www.advisoranalyst.com/glablog/wp-content/uploads/2013/11/apples-next-great-innovation-confirmed-a-gold-iphone-is-happening.jpg

• "Gold conducts electricity, does not tarnish, is very easy to work, can be drawn into wire, can be hammered into thin sheets, alloys with many other metals, can be melted and cast into highly detailed shapes, has a wonderful color and a brilliant luster."
• Jewelry: The Primary Use of Gold ]
• Medical Uses of Gold
• Use of Gold in Computers
• Use of Gold in Dentistry

Bibliography

• http://www.chemicalelements.com/elements/au.html
• http://www.livestrong.com/article/278461-effects-of-gold-on-skin/
• http://geology.com/minerals/gold/uses-of-gold.shtml
• http://www.americaslibrary.gov/jb/reform/jb_reform_fortyniners_1.html
• http://www.oilandenergydaily.com/wp-content/uploads/2013/07/Gold-is-the-New-Contrarian-Play.jpg (Background Image)

http://geology.com/minerals/gold/uses-of-gold.shtml