Presentation Silver Asst.Prof.Dr.Purit Thanakijkasem.

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Presentation transcript:

Presentation Silver Asst.Prof.Dr.Purit Thanakijkasem

Silver Silver is a metallic chemical element with the chemical symbol Ag it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal

Occurrence the Silver Element Silver ore is found in native form. The other principal sources of silver are copper, copper-nickel, gold, lead and lead-zinc ores. Found in Canada, Mexico, Peru, Australia and the USA.

Basic Information Name: Silver Symbol: Ag Atomic Number: 47 Atomic Mass: 107.8682 amu Melting Point: 961.93 °C Boiling Point: 2212.0 °C Number of Protons/Electrons: 47 Number of Neutrons: 61 Classification: Transition metal Crystal Structure: Cubic Density @ 293 K: 10.5 g/cm3 Color: silver

Atomic Structure Number of Energy Levels: 5 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 18 Fifth Energy Level: 1 Atomic Structure

Physical properties Silver is soft white metal with a shiny surface It is the most ductile and most malleable metal It conducts heat and electricity better than any other element It also reflects light very well.

Chemical properties Silver is a very inactive metal. It does not react with oxygen in the air It does react slowly with sulfur compounds in the air

The uses of Silver Silver was one of the earliest metals used to make coins

The uses of Silver Because silver is such a good conductor of electricity, it is used in many electrical applications such as switches, contacts and fuses

The uses of Silver About 14 percent of silver in the world is used in jewelry and silverware

Silver's important role in film Photographic film is coated with a thin layer of silver chloride, silver bromide, or silver iodide 44% of Silver world’s usage use in photo graphics film and paper

Present by Hataikan Plylahan 5310755342 Kanthicha Tawoncheewin 5310755656

References http://en.wikipedia.org/wiki/Silver#References www.google.com http://www.australianminesatlas.gov.au/education/down_under/silver/used.html www.chemistryexplained.com