PT: Platinum is one of the most expensive and valuable metals that is used in various industries. This metal is known for its unique properties and is used as one of the materials with special capabilities in various sciences.

Platinum is a white-silver metal that is located in the periodic table of elements with the symbol Pt and atomic number 78. This metal has the properties of being corrosion-resistant, resistant to temperature and pressure changes, and electrically insulating. Additionally, platinum has a very high melting point and high chemical resistance to oxidation and acids.

One of the main applications of platinum is in the jewelry industry. Due to its brightness and aesthetic beauty, platinum is used to make valuable jewelry. Additionally, this metal is used in the production of luxury watches and writing instruments with platinum nibs.

As a catalyst agent, platinum is used in chemical processes.