Date of Discovery: 1794
Discoverer: Johann Gadolin
Name Origin: After Ytterby (a town in Sweden)
Uses: color TV's, radars
Obtained From: monazite, xenotime, yettriac

 
Atomic Number: 39
Atomic Mass: 88.90585 amu
Melting Point: 1523.0 C (1796.15 K, 2773.4F)
Boiling Point: 3337.0 C (3110.15 K, 6038.6 F)
Crystal Structure: Hexagonal
Density @ 293 K: 4.469 g/cm3
Color: silvery

 
Isotope
Y-86
Y-87
Y-88
Y-89
Y-90
Y-90m
Y-91
Y-91m
Y-92
Y-93
Half Life
14.74 h
3.35days
106.6 days
Stable
2.67 days
3.19 h
58.51 days
49.71 min
3.54h
10.2h