Platnuim
By Sarah Waller
Platnuim History
Platinum is an element that was found in 1735 by Antonio de Ulloa in the United Kingdom. It came from the Spanish term, platina. Platina translates to "little silver". Although Antonio was credited for the discovery, Platinum was used in 1557 by Italian Humanist Julius Ceaser Scaliger.
Picture of Antonio de Ulloa.
Platinum Facts
Element Symbol: Pt
Atomic Number: 78
Atomic Weight: 195.09 g-mol -1
Standard State At Room Temperature: 298* k
Boiling Point: 3800* C
Melting Point: 1772* C
Category: Transition Metal
Platinum Description
Considering Platinum translates into little silver, Platinum is obviously silver like. It is very shiny and metallic like. Platinum is incapable t o solve in hydrpchloric and nitric acid, but will dissolve in hot aqua regia, a nitro-hydrochloric acid that dissolves platinum and gold.
Platinum is often used for jewelry. Many royal crowns contain Platinum. It is very silvery white and beautiful after polish.
Platinum Ring
This ring contains Platinum in the base of the ring.
Before Polished
This is a platinum chunk that that has just come out of the mine without polish and shine.
After Polish
This is a picture of Platinum after polish and shine. It almost looks like aluminum foil.