There are different ways by which one may invest in silver. Six are presented here: Buying silver coins: This is a popular way of taking hold of silver - physically. Perhaps the best example of a silver coin is the Canadian Silver Maple Leaf, which consists of 99.99% pure silver. Silver coins may either be "fine silver" or "junk silver". It likewise has the lowest melting point. Palladium is utilized in many applications because of its unique properties, some of which are provided below. General: Chemical Symbol: Pd Atomic Number: 46 Category (as an element): Transition Metal Group/ Period/ Block (in the Periodic Table): 10/ 5/ d Atomic Weight: 106.42 g. The lines, which represent equilibrium for the concentration, are drawn for ions at unit activity. Other concentrations may be represented by additional lines. The voltage potential is represented by a vertical axis, which is labeled Eh, where "h" stands for hydrogen. Physics has an even more strict definition for noble metals. There are at least six ways of investing in gold: Buying gold coins: This is the most popular way of investing in gold. Gold bullion coins are typically priced based on their weight; a premium is added to the gold spot price. Gold coins may be bought or sold over the counter in most Swiss banks. Buying gold bars: This is the most traditional way of investing in gold. But apart from these, both are also regarded as investment commodities. Palladium as an investment commodity: Palladium is valued at around US$415 per troy ounce. Actually, this is much lower than its price of more than one thousand U.S. dollars per troy ounce in early 2001, when the automobile industry placed a high demand for the precious metal for use as catalytic converters. Platinum: Most Widely Traded Of The Platinum Group Metals In the periodic table of the chemical elements, six metallic elements - all transition metals - are clustered together and lie in the d-block (the d-block in the periodic table refers to groups 8, 9, and 10, periods 5 and 6). These six elements are collectively referred to as the platinum group metals.