Inflation is the rate at which the general level of prices for goods and services is rising and, consequently, the purchasing power of currency is falling. Central banks attempt to limit inflation, and avoid deflation, in order to keep the economy running smoothly. Next Up.
If you are not allergic to metal, the reason for this reaction is chemical. It's due to a combination of the metal and the acids in your skin. Experts say that there are several metals that oxidize with your skin to give you a noticeable green ring around your finger. A ring made of copper is a common culprit, but even silver and gold metals can cause discoloration.
Palladium (Pd) is a precious metal that, together with iridium (Ir), platinum (Pt), rhodium (Rh), ruthenium (Ru), and osmium (Os), belongs to the platinum group elements (PGEs). Pd is one of the rarest elements in the earth's crust and its main ore deposits are found in the Russian Federation and South Africa.