General: Chemical Symbol: Rh Atomic Number: 45 Category (as an element): Transition Metal Group/ Period/ Block (in the Periodic Table): 9/ 5/ d Atomic Weight: 102.90550 g.mol-1 Electron Configuration: [Kr] 4d8 5s1 Physical: Density (near room temperature): 12.41 g.cm-3 Liquid Density (at melting point): 10.7 g. They may be stored in safe deposit boxes in banks or placed in non-fungible (allocated) or pooled (unallocated) storage with a silver dealer. Opening a silver account: An investor may open a silver account with one of the major banks in Switzerland. Here, silver can be bought or sold over the counter just like any foreign currency. Its price, as of January 2010, is USD1,555 per troy ounce (USD49,995 per kilogram), making it the second most expensive precious metal, after rhodium. Evident from the description of each of these six precious metals is that all of them have outstanding catalytic properties and high resistance to tarnish and wear. Swiss Helvetia Head (with face values of 100, 20, and 10 Swiss francs). 4. Austrian Vienna Philharmonic (with face values of 100, 50, 25, and 10 euros). Silver coins, like the minted coins circulated in the United States and other countries prior to 1965, were made of 90% silver and 10% copper. The American Silver Eagle and the Mexican Silver Libertad bullion coins, introduced in 1986 and 1982 respectively, were made of 99.9% silver and 0.1% copper. Records have the following details about the Welcome Stranger: Gross weight: 3,523.5 troy ounces (241.61 pounds) Trimmed weight: 2,520 troy ounces (172.8 pounds) Net weight: 2,315.5 troy ounces (158.78 pounds) Measurement: 2 feet (0.61 meter) x 1.02 feet (0.31 meter) For their find, Deason and Oates were paid about 19,068 by the London Chartered Bank (located in the town of Dunolly in Victoria), where they took the nugget. Osmium - Smithson Tennant, an English chemist, discovered osmium in 1803 from the residues of platinum ores that were dissolved in nitro-hydrochloric acid. Osmium's characteristic of having a bad smell led to its naming as such, which was derived from the Greek word "osme", meaning "smell".