Date of Discovery: 1907
Discoverer: Georges Urbain
Name Origin: From Lutetia (ancient name of Paris)
Uses: No uses known
Obtained From: gadolinite, xenotime

 
Atomic Number: 71
Atomic Mass: 174.967 amu
Melting Point: 1656.0 °C (1929.15 °K, 3012.8 °F)
Boiling Point: 3315.0 °C (3588.15 °K, 5999.0 °F)
Crystal Structure: Hexagonal
Density @ 293 K: 9.85 g/cm3
Color: silvery

 
Isotope
Lu-172
Lu-172m
Lu-173
Lu-174
Lu-174m
Lu-175
Lu-176
Lu-177
Lu-174m
Half Life
6.7 days
3.7 min
1.37 years
3.3 years
142.0 days
Stable
3.6E10 years
6.68 days
160.7 days