Element Symbol - Ag
Group Members- Kimiyo Bremer,
Emma Davidson, Holly DeMita
Period 5
Grade 8
May 3, 2010
Atomic Number- 47
Atomic Mass- 107.8682 amu
Classification- Metal
Group- 11
When discovered
How
- It isn't completely known but a lot of silver was found in slag dumps in Asia minor and on islands in the Aegean Sea
Where
Most everywhere
Person who discovered
Common Historical Uses
- jewelry, silver ware, cook ware, sometimes used for medicine.
Substances found in time period
Physical Properties:
- It is a soft, white metal but has a very shiny surface.
- It is the most ductile metal
- It is the most malleable metal
- It conducts heat and electricity better than any other element
- Reflects light extremely well
- Density is 10.49 grams per cubic centimeter
Chemical Properties:
- It is a very inactive metal
- Does not react with oxygen in air under normal circumstances
- The tarnish that develops on silverware or jewelry over time is silver sulfide.
- Doesn't react readily with water, acids or many other compounds
- It does not burn except as silver powder
Modern Uses:
- About 10 percent of silver produced in the US is used in coins, jewelry, and artwork.
- Silver is commonly used in alloys with gold. Gold is too soft in its pure form so adding siver creates a much stronger, longer-lasting substance.
- Over half of the silver in the US goes to photographic film.
- Silver is the most desirable of all metals for electrical equipment.
Interesting Facts!
- When silver gets on skin, it can cause a bluish appearance known as argyria or argyrosis.
- Breathing in silver dust can have serious long-term health effects also.
- Silver was used as a purifying agent for water in the first space shuttle program.
SILVER
Bricks of silver with engravings
Close up of silver with
chemical symbol
Silver in its
original form
This is a silver thimble.