 |
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, 2773.4°F) |
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 |
|