Periodic table of the elements
YtterbiumLutetiumHafnium
71
Lu
Lutetium
174.967
2
8
18
32
9
2
71
Lu
Lutetium
174.967
2
8
18
32
9
2
General
NameLutetium
SymbolLu
Number71
Chemical seriesLanthanides
Group / Period0 / 6
Blockd-block
CAS registry number7439-94-3

Physical properties
Statesolid
Density9.841 g/cm3
Melting point1925 K (1652 °C, 3006 °F)
Boiling point3675 K (3402 °C, 6156 °F)
Critical point

Atomic properties
Atomic Weight174.967 g/mol
Crystal structurehexagonal
Electronegativity1.27
Atomic radius175 pm
Atomic radius (calculated)217 pm
Electron configuration[Xe] 6s2 4f14 5d1
Electrons per shell2, 8, 18, 32, 9, 2
Number of protons71
Number of neutrons104

Other languages
SpanishLutecio
PortugueseLutécio
FrenchLutécium
GermanLutetium
ItalianLutezio
RussianЛютеций
PolishLutet
Chinese
Arabicلوتيتيوم
TurkishLutesyum
DutchLutetium


Periodic table of the elements
YtterbiumLutetiumHafnium