Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.

Dec 28, 2025 · Platinum, chemical element, the best known and most widely used of the six platinum metals. A very heavy, precious, silver-white metal, platinum is soft and ductile and …

Element Platinum (Pt), Group 10, Atomic Number 78, d-block, Mass 195.084. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Ruthenium, rhodium, palladium, osmium, iridium, and platinum together make up a group of elements referred to as the platinum group metals (PGM). Platinum is a beautiful silvery-white …

Chemical element, Platinum, information from authoritative sources. Look up properties, history, uses, and more.

Platinum is a chemical element of the periodic table with chemical symbol Pt and atomic number 78 with an atomic weight of 195.085 u and is classed as transition metal and is part of group …

Nov 1, 2023 · Platinum is a metallic element with symbol Pt and atomic number 78. It is a luxurious and precious metal that resists tarnish and corrosion, and has a high melting point …

The chemical element platinum is classed as a transition metal. It was discovered by South American peoples.

The Chemistry Division's Periodic Table describes the history, properties, resources, uses, isotopes, forms, costs, and other information for each element.

Platinum is the 78th element in the periodic table and has a symbol of Pt and atomic number of 78. It has an atomic weight of 195.084 and a mass number of 195. Platinum has seventy-eight …