Lutetium has an atomic number of 71, meaning each atom contains 71 protons in its nucleus.
The standard atomic weight of lutetium is 174.97 u (unified atomic mass units).
Lutetium is classified as a lanthanide.
Lutetium is a solid at 20 Β°C (68 Β°F).
The melting point of lutetium is 1662.85 Β°C / 1936 K.
The boiling point of lutetium is 3401.85 Β°C / 3675 K.
The density of lutetium is 9.84 g/cmΒ³ (20Β°C).
Lutetium has a Pauling electronegativity of 1.27.
The electron configuration of lutetium is [Xe] 4f14 5d1 6s2.
Lutetium commonly exhibits the following oxidation states: +3.
Lutetium was discovered in 1907 by Georges Urbain and Carl Auer von Welsbach.
Lutetium is a stable element with no naturally occurring radioactive isotopes.
No known biological role.
Lutetium is used for: PET scan detectors; Catalysts; Research.