Platinum

Transition metal

Symbol: Pt

Atomic Number: 78

Standard State: Solid

Atomic Mass: 195.08

Electron Configuration: [Xe]6s1 4f14 5d9

Electronegativity: 2.28

Atomic Radius: 209

Ionization Energy: 9

Melting Point: 2041.55

Boiling Point: 4098

Density: 21.46

Year Discovered: 1735