Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78, belonging to the platinum group. It is a rare, valuable, non-ferrous metal that often exists in nature with other platinum group elements.

The physical properties of platinum are very special, it has the characteristics of high melting point, high density, high strength and good chemical stability. It is denser than gold, one of the heaviest metals, has excellent corrosion resistance, and is able to withstand high temperatures and chemicals.

Platinum has many important applications and is an important catalyst that is widely used in the chemical, petroleum and automotive industries. In addition, platinum is also used in jewelry manufacturing, electronic equipment, medical devices and other fields.

Platinum also has some biological significance, it is an important pharmaceutical ingredient used to treat certain cancers and other diseases. In addition, platinum is also used in the manufacture of artificial joints and medical devices within plants.

Platinum is a very precious metal and its production is very limited, so it is expensive. It is a resource of great value, which has a wide range of applications in various fields and has very important economic and scientific significance.