Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term platina, meaning little silver.

Atomic Weight:  56
Density:        765 g/cm3
Melting Point:  65.65 °C
 Boiling Point: 78 °C