Period 5 element in South Africa, the Stillwater Complex in Montana, United States, the Thunder Bay District of Ontario, Canada, and the Norilsk Complex in Russia. Recycling is also a source of palladium, mostly from scrapped catalytic converters. The numerous applications and limited supply sources of palladium result in the metal attracting considerable investment interest. Silver is a metallic chemical element with the chemical symbol Ag (, from the Indo-European root "*arg-" for "grey" or "shining") and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal.
Electrical resistivity and conductivity individual matrix elements are not necessarily reciprocals of one another; for example, "σ" may not be equal to 1/"ρ". This can be seen in the Hall effect, where formula_34 is nonzero. In the Hall effect, due to rotational invariance about the z-axis, formula_35 and formula_36, so the relation between resistivity and conductivity simplifies to: If the electric field is parallel to the applied current, formula_34 and formula_40 are zero. When they are zero, one number, formula_41, is enough to describe the electrical resistivity. It is then written as simply formula_9, and this reduces to the simpler expression. According to elementary