Symbol
Lu
Atomic Number
71
Atomic Mass
174.9668
Protons
71
Neutrons
103
Electrons
71
Type
Lanthanide
Isotopes
Lutetium-175
Discovery Year
1907
Discovered By
Georges Urbain
Group
3
Period
6
Boiling Point
3402°C
Melting Point
1663°C
Electron Configuration
[Xe] 6s² 4f¹⁴ 5d¹
Density (g/cm³)
9.841
Crystal Structure
Hexagonal
Magnetism
Paramagnetic
Abundance in Earth's Crust
0.0006%
Phase at Room Temperature
Solid