The Norilsk Nickel Mining and Metallurgical Company in northern Russia is the largest single producer of palladium in the world. Significant amounts of mineable palladium are also found in two other places: the Lac des les igneous complex in northwestern Ontario, Canada and the Stillwater igneous complex in the state of Montana in the United States. mol-1 Atomic: Oxidation States: 8, 7, 6, 5, 4, 3, 2, 1, 0, -1, -2 Electronegativity: 2.2 (Pauling scale) Atomic Radius: 135 picometre Covalent Radius: 144 4 picometre Ionization Energies: 840 kJ.mol-1 (first), 1600 kJ.mol-1 (second) The name "osmium" was derived from the Greek word "osme", which means "smell". Electrical and electronic products (silver paints are used in making printed circuits; silver electrical contacts are used in making computer keyboards). 5. Dentistry (silver-mercury alloy is used in making dental amalgams). 6. Optics and mirrors. 7. Various industrial and commercial uses (silver is ideal for use as a catalyst in chemical reactions). Here, it is clear that the currency value assigned by the government to a gold bullion coin has no meaning. Below is a list of some of the government-issued gold and silver bullion coins: 1. Australian Gold Nugget, Lunar Series I, and Lunar Series II 2. Austrian Philharmoniker 3. Canadian Maple Leaf 4. ) coin - With a face value of USD10, 3.112 grams (g) in weight, 0.95 millimeters (mm) thick, and 16.5 mm in diameter. 2. 1/4 oz. coin - With a face value of USD25, 7.78 g in weight, 1.32 mm thick, and 22 mm in diameter. 3. 1/2 oz. coin - With a face value of USD50, 15.56 g in weight, 1.75 mm thick, and 27 mm in diameter. Some of the properties of rhodium are listed below. 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.