Date of Discovery: 1878
Discoverer: Jena de Marignac
Name Origin: Ytterby (a town in Sweden)
Uses: Metallurgical and chemical experiments
Obtained From: Yttria, monazite, gadolinite, xenotime

 
Atomic Number: 70
Atomic Mass: 173.04 amu
Melting Point: 824.0 °C (1097.15 °K, 1515.2 °F)
Boiling Point: 1466.0 °C (1739.15 °K, 2670.8 °F)
Crystal Structure: Cubic
Density @ 293 K: 6.98 g/cm3
Color: Silvery

 
Isotope
Yb-168
Yb-169
Yb-170
Yb-171
Yb-172
Yb-173
Yb-174
Yb-175
Yb-176
Half Life
Stable
32.03 days
Stable
Stable
Stable
Stable
Stable
4.19 days
Stable