Question

Note Making:

Answer 1

The first encountered metal in Columbia was Platinum. The Platinum group metals include rhodium, ruthenium, palladium, osmium, iridium and platinum. The availability is so low that minute quantity of one gram of rhodium is found in a ton of rock. Platinum's resistance characteristics suit for making fine jewellery. Some of the other distinctive properties are resistance to chemical attack, excellent durability to high-temperature and stable electrical properties like high conductivity. These metals are durable and can be used extremely efficiently. These metal are used in a variety of applications from fountain pens to aircraft.