Tantalum

Transition metal

Symbol: Ta

Atomic Number: 73

Standard State: Solid

Atomic Mass: 180.9479

Electron Configuration: [Xe]6s2 4f14 5d3

Electronegativity: 1.5

Atomic Radius: 217

Ionization Energy: 7.89

Melting Point: 3290

Boiling Point: 5731

Density: 16.4

Year Discovered: 1802