Atomic Number: 71

Name: Lutetium

Atomic symbol: Lu

Atomic Weight: 174.967

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁶4f¹⁴5d¹6s²

Melting Point: 1663^oC

Boiling Point: 3395^oC

Density: 9.8 g/cm³

Ionic radius: 0.85 angstroms (+1)

Metallic radius: 1.74 angstroms