Terbium

Lanthanide

Symbol: Tb

Atomic Number: 65

Standard State: Solid

Atomic Mass: 158.9254

Electron Configuration: [Xe]6s2 4f9

Electronegativity:

Atomic Radius: 221

Ionization Energy: 5.864

Melting Point: 1629

Boiling Point: 3503

Density: 8.23

Year Discovered: 1843